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- NCAA tournament 2015: Possible upsets and bracket busters in 'March Madness'The NCAA men's basketball tournament begins this week, with a number of 'David versus Goliath' matchups that could bring surprising results.Â
- 2015 NCAA tournament TV schedule: Who to watch WednesdayFour more teams play tonight:  Robert Morris vs. University of North Florida and the University of Dayton takes on Boise State. The winners advance to the second round of 'March Madness."
- Presbyterians give approval to gay marriage in church constitutionThe historic decision makes the Presbyterian Church the largest Protestant group in the United States to allow same-sex weddings in every congregation.
- St. Patrick's Day parade: LGBT inclusion hints at shifting Catholic moresFor the first time, LGBT groups openly marched in St. Patrick's Day parades in Boston and New York this week.
- Chris Borland retires: What can NFL do about its concussion problem?Chris Borland, a promising young linebacker for the San Francisco 49ers, has retired after one season because of concussion concerns. The problem is perhaps the biggest threat to the NFL's status as America's most popular sports league.
- 2015 NCAA tournament TV schedule: Who to watch Tuesday nightHampton vs. Manhattan, a pair of No. 16 seeds in the Midwest region battling for the chance to meet NCAA tournament  top seed Kentucky on Thursday night. Later Tuesday night, it's Brigham Young University vs. Mississippi to see who plays Xavier on Thursday.Â
- March Madness brackets: Surprises, controversy and strength of scheduleSunday night's announcement of the 2015 NCAA men's basketball tournament field established the selection committee's preference for power conference schools with the greatest strength of schedule.Â
- Fun facts about all 68 NCAA basketball tournament teams for 2015 Our resident sports historian takes a look at the 68 teams in this year's NCAA men's basketball tournament field and has found something interesting to share about each one.
- No. 1 Kentucky overall top seed in NCAA men's basketball tournamentVillanova, Duke, and Wisconsin are the other regional top seeds in this year's version of 'March Madness,' which begins with play-in games Tuesday night.
- University of Oklahoma fraternity has history of racist incidents elsewhereSigma Alpha Epsilon was founded by southerners who fought for the Confederacy. In addition to the racist video at the University of Oklahoma, there have been racist incidents at other fraternity chapters.
- For small-town America, new immigrants pose linguistic, cultural challengesA new generation of immigrants is arriving in Midwest towns from far-flung places such as Myanmar, Somalia, and Iraq. The communities are trying to adjust.
- FocusHow one small Midwest town has turned immigration into positive changeIn parts of the Midwest, floods of immigrants are reshaping the culture. The influx is presenting challenges, but some towns have made strides toward striking a balance between old and new.
- March Madness 2015: Time to fill out those NCAA basketball tournament bracketsThe annual NCAA Division 1 men's basketball tournament commences with Sunday night's selection show. 68 teams will vie for the national championship, to take place in Indianapolis in April.Â
- From Ringling Bros. to Sea World, Americans stand up for animalsRingling Bros. and Barnum & Bailey's decision to end elephant performances in response to consumer pressure is the latest evidence of a sea change in how Americans view animals.
- Why are NFL players walking away from the game so early?With notable names like Jake Locker and Patrick Willis retiring in the athletic primes of their respective careers, it raises the question: Why are players hanging up their shoulder pads and helmet when there is still plenty of money to be earned?Â
- In wake of Oklahoma racist chant, how can colleges reform fraternities?From suspending a fraternity or sorority to identifying undergraduates most open to change, it is possible to change the culture of Greek systems on campus, experts say.
- Will 'Blurred Lines' verdict make it harder to be a songwriter?Melodies and lyrics have long been considered intellectual property, but the ruling against Pharrell Williams and Robin Thicke may be the first time a court has ruled that a rhythm is copyright protected.
- Oklahoma racist frat chant: glimpse of what goes on behind closed doorsPlenty of people on social media have stepped forward to say that, as ugly as the chant by fraternity members at the University of Oklahoma is, it's hardly surprising and that they know of similar events.
- Banning the American flag? Why UC Irvine flap might be glimpse of future.The controversial decision by the UC Irvine student body government to ban the American flag – as well as all other flags – speaks to broader generational shifts in views of patriotism. The decision has since been overturned.
- Obama: Selma a place where the nation’s destiny has been decidedPresident Obama spoke at an event marking the 50th anniversary of the 1965 civil rights march in Selma, Ala. 'It was not a clash of armies, but a clash of wills,' he said, 'a contest to determine the meaning of America.'