president for the naacp. join the live conversation now. go to cnn.com/amfix. enough out there to talk about. >> sure is. the setback in the gulf and the efforts to cap the oil leak. bp discovering a leak in the new 75 ton containment cap its using to stop the spill. that's forced integrity tests to be delayed. >> testing whether it can hold up under extreme pressure once that cap stems the oil flow. david mattingly is live in new orleans and, david, do we know how long this problem will delay these efforts? >> reporter: we don't. not at this hour, and everything seemed to start so well with this operation. it was very dramatic when they started the closing procedures on this cap. they immediately were able to shut off the flow of oil that was spewing out of the top of that cap. that looked very encouraging, but when they did that, bp was able to determine that they had a leak in one of the other