blocks controversial parts of arizona's immigration law just before it goes into effect. the legal battle is not over yet and we will take you to the front lines of the fight. 100 days after a blowout led to the disaster in the gulf, what happened to all of the oil? if we can't see it, is it still a big problem? and billions of dollars meant for rebuilding iraq now vanished. the pentagon can't figure out what happened to the money. we are on the case. we welcome our viewer ins the united states and around the world. wolf blitzer is off today. i'm suzanne malveaux, and you i'm suzanne malveaux, and you are in "the situation room." -- captions by vitac -- www.vitac.com we begin with the breaking news out of arizona. just hours before that state's controversial immigration law is due to take effect. a federal judge blocks key parts of it including one provision that requires police to question people about their immigration status. now, the justice department which filed suit against the law