Well if the US sticks to that line,they'd be shut out of the arms market in no time!!Anyway,license manufacturing is actually a monitored process where the company building it usually doesn't have source codes & other classified technology.
About license manufacturing & Muslims,well the only country building Abrams tanks under license is,...Egypt. & Turkey has also built the F-16 & has infact been successful in selling upgrade packages to F-16 users like Jordan & Pakistan.