A suicide bomber killed seven people, including three Somali lawmakers in Dusamareb today. Reuters reports that al Shabaab — the Islamic militant group — took responsibility.

Reuters adds:

"While suicide bombers sent by al Shabaab militants have struck government targets and African Union troops in the capital Mogadishu often in recent years, such attacks are rare in central Galgadud region.

One year to the day after announcing to the world the death of Osama bin Laden, President Obama is in Afghanistan, the nation from which the al-Qaida leader and his followers planned and organized the Sept. 11, 2001, terrorist attacks.

The news of the president's unannounced trip was confirmed just before 3 p.m. ET. Obama is scheduled to deliver a televised address aimed at Americans this evening at 7:30 p.m. ET.

Have you signed up to donate your organs if something happens to you? Are you willing to share that information online with your friends, family and acquaintances?

Facebook execs think you might. And they reckon shared stories about the decision to become an organ donor might spur others to do the same.

A recent NPR story about homeless veterans brought a remarkable email from listener Gary Bressick, who runs an insurance agency in Los Angeles. The story focused on one veteran, James Brown, who had just moved into his first apartment after living on the streets for most of the previous three decades.

Transcript

NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan.

In a piece in last month's Chicago Tribune, reporter Bonnie Miller Rubin described a message from an earlier self, a copy of the Davenport Times Democrat from 1973 that introduced her as that paper's first gal on the sports desk, complete with a photo of her in a short skirt jogging alongside the track team from a local college. In a column, her then-editor wrote: Please, no special treatment for her just because she's a member of the fairer sex. She joins us in a moment.

In the first formal acknowledgement of what's been an open secret, White House Counter Terrorism adviser John Brennan publicly stated that the U.S. conducts drone strikes targeted on al-Qaida. In a speech at the Woodrow Wilson Center, Brennan opened many doors on drone strikes.

Secretary of State Hilary Clinton and Treasury Secretary Timothy Geithner's China visit comes at a fragile moment in diplomatic relations. Some analysts describe the Chen Guangcheng and Bo Xilai incidents as a "perfect storm" that will test the relationship between the U.S. and China.

NPR's Neal Conan reads from listener comments on previous Talk of the Nation show topics including the outlook for new graduates and jobs, guns and "Stand Your Ground" laws, and violinist Joshua Bell's new job.