NPR News

Condoms aren't just for men.

A second generation of female condoms, which was approved in 2009, is cheaper than the first version. Still, the condoms for women are a lot more expensive than those for males. And female condoms remain pretty unfamiliar to most people.

The U.S. Supreme Court begin hearing oral arguments on the health care law Monday. Outside the court, protesters and counter-protesters gathered with signs and chants. Also, people hoping to get in to witness the proceedings started lining up Friday morning.

This week, New York Times correspondent Jeffrey Gettleman will receive a George Polk Award for being the first to report that the militant Islamist group al-Shabab had prevented starving people from leaving Somalia.

Three days of historic Supreme Court arguments on the constitutionality of the Affordable Care Act started Monday in a case that could decide the fate of the controversial health-care law. A new CBS News/New York Times poll found that 47 percent of respondents opposed the law while 36 percent approved it.

Now we know the Final Four teams in the 2012 NCAA Division I men's basketball championship:

-- Kansas.

-- Kentucky.

-- Louisville.

-- Ohio State.

So it's time to ask:

The women's Division I tournament, by the way, is down to its Elite Eight.

Good morning.

Our early headlines:

-- Tens Of Thousands Expected Today At Florida Rally For Trayvon Martin .

-- The Arguments Begin: Supreme Court Takes Up Health Care Starting Today.

A rally in Sanford, Fla., today "to demand justice in the Trayvon Martin shooting death," is expected to draw "tens of thousands of people," Orlando's WFTV says.

The rally — one month after the black teen's death — is due to begin at 4 p.m. ET and end with those thousands gathered outside the city's civic center as the Sanford City Commission meets to hear from the 17-year-old Martin's parents.

NPR's Ken Rudin is a fan of using history as a guide to what might happen next when it comes to politics, and this morning he focuses on the 2012 race for the Republican presidential nomination and what lessons we might learn from an earlier battle between GOP contenders.