now it is a race against time to figure out if the bin laden files were his aspirations or did someone in the field decide to put his murderous dreams in motion? pierre thomas, abc news, washington. a new study by the roman catholic church blames the priest sex abuse scandal on the sexual revolution of the '60s and '70s. researchers say the abuse never had any connection with either priest celibacy or homosexuality. they say the offending priests weren't able to copy with social upheaval. victims groups dismiss the study saying it does not address the higher-ups who allowed the abusive priests to stay on. doctors say that congresswoman gabby giffords is recovering after surgery to repair a hole in her comes as relief to her husband, commanding the space shuttle "endeavour" 200 miles above earth. bob woodruff has details.