damage. >> researchers say pregnant women can have a few drinks without hurting their baby's brain. doctors worn that's -- warn that's not the whole story. and bring on the sharks. >> we see it as a positive. >> maybe having the opportunity to see a dorsal fin out in the water. >> shepard: some summer hot spots are cashing in on shark tourism. but first from fox this tuesday night. a plan to bomb the new york stock exchange stopped because of government surveillance. that's what the head of the national security agency told part of congress today. he says the phone and internet programs helped prevent since 9/11 more than 50 terror attacks. 10 of them here in the u.s. including that plot to bomb wall street. general keith alexander says that intelligence, it had it been in place might have helped prevent the 9/11 attacks themselves. >> in the 12 years since the attacks on september 11th, we have