AP 2011-03-22（在线收听）

1. The Pentagon says the US has fired missiles on Libyan air defenses. French warplanes have also taken part in enforcing a no-fly zone over Libya. This comes after Libyan forces continue their assault on rebel-held position.

2. Japan's government says radiation is turning up in food and water there. This comes as workers continue to struggle to contain the damage at the stricken nuclear plant.

3. President Barack Obama is in Brazil in search of more business for US company. He landed there today and has already inked an agreement to help Brazil plan for the World Cup and the Olympic.

4. Famed German polar bear Knut has died. A Berlin Zoo official says the four-year-old died alone in its compound Saturday afternoon. Officials say it's not clear yet what caused Knut’s death.