Portugal credit rating

World News Brief, Thursday July 7

Assad launches another "ferocious" attack on Hama, while Amnesty accuses him of crimes against humanity; Qaddafi forces kill five in Misurata; Reports: Russian officials say Qaddafi may be willing to step down; Bitter irony – Somalis fleeing drought drown in Red Sea; Portugal's credit rating slashed to junk status; New Thai PM focuses on economy; and more

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