text: Dozens Detained in Egypt Bombing Probe TABA, Egypt - Investigators lifted fingerprints, swabbed dust and collected tissue from the wreckage of three car bombings Saturday and detained dozens of Bedouin tribesmen, including quarry workers who could have provided the explosives that killed at least 34 people.    Israel blamed al-Qaida for the Thursday night attacks in two Sinai resorts, and Egyptian investigators were leaning toward an al-Qaida connection as well...