NPR News

At least 70 countries, including the U.S., pledged millions of dollars in aid to the Syrian opposition. U.N.-Arab League envoy Kofi Annan has set a deadline of April 10 for compliance with the U.N. peace plan. Some analysts believe it's too late for peaceful negotiations.

Writer Donna Britt's 26-year-old brother was killed by Indiana police officers decades ago. Amidst the news of Trayvon Martin's death, she is reminded of the unanswerable questions surrounding her brother's death. She talks about the challenges of coming to terms the violent death of a loved one.

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NEAL CONAN, HOST:

Global Payments, a third-party processor of credit card payments for Visa, MasterCard and Discover, said late last night that the data breach made public last week may have risked about 1.5 million credit card numbers.

"It's constitutional," President Obama declared this afternoon when asked about the 2010 health care overhaul legislation that was the subject of three days' worth of Supreme Court hearings last week.

He's confident a majority of the justices will agree, Obama added. Many Supreme Court watchers are less certain.

The president make those comments in response to a question that came up during a joint news conference at the White House with Canadian Prime Minister Stephen Harper and Mexican President Felipe Calderon.