supporters of fracking say it could increase natural gas production and critics claim it hurts the environment. it's about the nuclear button she was concerned about. >> new york city mayor michael bloomberg speaking very frankly at the weigh-in for today's annual nathan's hot dog eating contest. apparently his speechwriters had just too many puns. >> if one of their dogged pursueers will finally catch up, cut the mustard and be pronounced wiener. no question, it's going to be a dogfight. just think of how many we got into one sentence. that was really impressive. who wrote this [beep]? >> that got a bigger laugh than the actual puns. the eating began at 11:30 a.m. eastern time today. >> some junior speechwriter getting some recognition. and a putdown. the vice president says republicans are waging an all