I just saw on CNN that an internal Coast Guard report was released that said there were "serious intellegeance gaps" that PREVENTED them from giving the deal a clean bill of health, security-wise. Senator Snowe released the unclassified portion of the report, which helps put the kabash on the whole "we reviewed this and it's fine" story that the Bushies are hyping right now.
I'll update as I get more information on this.
*UPDATE:* ABC has the story here. The AP has it here.