The Justice Department said Tuesday it could seek more than $5 billion in damages from Standard & Poor's, the nation's biggest credit ratings company, a day after it sued the company, alleging that S&P defrauded investors by giving triple-A ratings to risky subprime mortgage investments.

President Mahmoud Ahmadinejad on Tuesday became the first Iranian leader to visit Egypt since the 1970s, the latest sign of the thawing of relations between the rival Muslim nations.

Ahmadinejad received a red-carpet welcome as Egypt's President Mohammed Morsi greeted him on the tarmac at Cairo International Airport with a kiss on each cheek.

Under Egypt's former leader, Hosni Mubarak, a visit like this would never have happened.

Transcript

ROBERT SIEGEL, HOST:

Senator Ron Wyden, Democrat of Oregon, is one of those 11 senators that Carrie mentioned who've demanded the administration turn over secret documents about the operation against Anwar al-Awlaki. Senator Wyden also sent a letter last month to the White House counterterrorism chief, John Brennan, the president's nominee to run the CIA. And in that letter, he asked: How much evidence does the president need to determine that a particular American can be lawfully killed?

Senator Wyden joins us now. Welcome to the program.

Marcos Valle wasn't identified with Brazil's influential Tropicalia movement during the 1960s and 1970s. But, like his peers Caetano Veloso and Gilberto Gil, he made ambitious and subversive pop music during those years, mixing American soul and rock with samba, bossa nova and other Brazilian styles.

Rape has long been a weapon of war, but documenting sexual violence usually happens after a conflict is over. Researchers are taking a new path with the Syrian conflict: tracking the incidents of rape as they occur.