Setback: BP cap in limbo over gov't questions

BP's work to cap its Gulf of Mexico gusher was in limbo Wednesday after the federal government raised concerns the operation could put damaging pressure on the busted well and make the leak worse.
An administration official, who asked not to be identified because of the sensitivity of the talks with BP, said the government was acting out of an "abundance of caution" and didn't want potentially dangerous pressure tests on a tighter cap that has been placed over the well to go ahead until BP answers questions about possible risks. LINK