couric: good evening, everyone. it s mission accomplished, at least as far as getting the cap on the well. now the question is will this latest temporary ticks work? so far, b.p. oil is still spewing through vents in the cap. engineers hope to eventually close them and capture most of the oil that s now leaking. today president obama made his third visit to the gulf since the disaster began and said it seems like we re making progress. meanwhile, anti-b.p. sentiment is growing at the company s washington offices today. protestors demanded the oil company be prosecuted for criminal negligence. in a cbs news poll out tonight, 68% of meshes say b.p. is doing a bad job. and more disapprove of the obama administration s handling of the crisis than approve of it. we begin tonight where the oil is washing up with mark strassmann at his usual post in grand isle, louisiana. mark, what s the latest? reporter: katie, that anger and frustration you just talked about i hear more and