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The struggle against discrimination based on gender identity has also won some significant victories. In 2014, the U.S. Department of Education ruled that schools receiving federal funds may not discriminate against transgender students, and a board within the Department of Health and Human Services decided that Medicare should cover sexual reassignment surgery. Although very few people eligible for Medicare are transgender, the decision is still important, because private insurance companies often base their coverage on what Medicare considers appropriate and necessary forms of treatment for various conditions. Undoubtedly, the fight for greater rights for LGBT (lesbian, gay, bisexual, transsexual) individuals will continue.

Violence

Another running debate questions the easy accessibility of firearms. Between the spring of 1999, when two teens killed twelve of their classmates, a teacher, and themselves at their high school in Columbine, Colorado, and the early summer of 2014, fifty-two additional shootings or attempted shootings had occurred at schools ( [link] ). Nearly always, the violence was perpetrated by young people with severe mental health problems, as at Sandy Hook elementary school in Newtown, Connecticut, in 2012. After killing his mother at home, twenty-year-old Adam Lanza went to the school and fatally shot twenty six- and seven-year-old students, along with six adult staff members, before killing himself. Advocates of stricter gun control noted a clear relationship between access to guns and mass shootings. Gun rights advocates, however, disagreed. They argued that access to guns is merely incidental.

A photograph shows a massive crowd gathered in darkness in front of a large university building, holding candles.
A candlelight vigil at Virginia Polytechnic Institute and State University in Blacksburg, Virginia, in the wake of the 2007 murder of thirty-two people by a student. The incident remains the deadliest school shooting to date. (credit: “alka3en”/Flickr)

Another shocking act of violence was the attack on the Boston Marathon. On April 15, 2013, shortly before 3:00 p.m., two bombs made from pressure cookers exploded near the finish line ( [link] ). Three people were killed, and more than 250 were injured. Three days later, two suspects were identified, and a manhunt began. Later that night, the two young men, brothers who had immigrated to the United States from Chechnya, killed a campus security officer at the Massachusetts Institute of Technology, stole a car, and fled. The older, Tamerlan Tsarnaev, was killed in a fight with the police, and Dzhokhar Tsarnaev was captured the next day. In his statements to the police, Dzhokhar Tsarnaev reported that he and his brother, who he claimed had planned the attacks, had been influenced by the actions of fellow radical Islamists in Afghanistan and Iraq, but he denied they had been affiliated with any larger terrorist group.

A photograph shows bystanders at the finish line of the Boston Marathon, tending to the injured and carrying them to safety.
Bystanders at the finish line of the Boston Marathon help carry the injured to safety after the April 2013 attack. Two bombs exploded only a few seconds and a few hundred yards apart, killing three people. (credit: Aaron Tang)

America and the world

In May 2014, President Obama announced that, for the most part, U.S. combat operations in Afghanistan were over. Although a residual force of ninety-eight hundred soldiers will remain to continue training the Afghan army, by 2016, all U.S. troops will have left the country, except for a small number to defend U.S. diplomatic posts.

The years of warfare have brought the United States few rewards. In Iraq, 4,475 American soldiers died and 32,220 were wounded. In Afghanistan, the toll through February 2013 was 2,165 dead and 18,230 wounded. By some estimates, the total monetary cost of the wars in Iraq and Afghanistan could easily reach $4 trillion, and the Congressional Budget Office believes that the cost of providing medical care for the veterans might climb to $8 billion by 2020.

In Iraq, the coalition led by then-Prime Minister Nouri al-Maliki was able to win 92 of the 328 seats in parliament in May 2014, and he seemed poised to begin another term as the country’s ruler. The elections, however, did not stem the tide of violence in the country. In June 2014, the Islamic State of Iraq and Syria (ISIS), a radical Islamist militant group consisting of mostly Sunni Muslims and once affiliated with al-Qaeda, seized control of Sunni-dominated areas of Iraq and Syria. On June 29, 2014, it proclaimed the formation of the Islamic State with Abu Bakr al-Baghdadi as caliph, the state’s political and religious leader.

Section summary

Despite Republican resistance and political gridlock in Washington during his first term in office, President Barack Obama oversaw the distribution of the TARP program’s $7.77 trillion to help shore up the nation’s banking system, and Congress authorized $80 billion to help Chrysler and General Motors. The goals of Obama’s Patient Protection and Affordable Care Act (Obamacare) were to provide all Americans with access to affordable health insurance, to require that everyone in the United States had some form of health insurance, and to lower the costs of healthcare. During his second term, the nation struggled to grow modestly, the percentage of the population living in poverty remained around 15 percent, and unemployment was still high in some areas. Acceptance of same-sex marriage grew, and the United States sharply reduced its military commitments in Iraq and Afghanistan.

Questions & Answers

Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
What is specific heat capacity
Destiny Reply
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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Source:  OpenStax, U.s. history. OpenStax CNX. Jan 12, 2015 Download for free at http://legacy.cnx.org/content/col11740/1.3
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