PHILADELPHIA - Crime scene tape stretched across a row of school buses at a yard on Orthodox Street in Frankford after police say thieves cut the catalytic converters off the buses and escaped into the night,"They stole approximately 52 catalytic converters off 26 vehicles, " Major Crimes Unit Captain Jack Ryan saidPolice believe the thieves cut the converters from the buses over two days, causing thousands of dollars in damage and putting the buses out of service.Investigators say the buses are the latest target for converter bandits who have also been victimizing car owners from Northern Liberties to South Philly.