US Citizens doing crypto work overseas

Does anyone have any idea how extensive the legal entaglements might be for a US Citizen to accept work overseas developing crypto software for a foreign company? Someone at a company in Australia is interested in hiring some crypto-clued folks, and has asked me if it's even worth pursuing any US citizens. advTHANKSance -- Matt Curtin Chief Scientist Megasoft Online cmcurtin@research.megasoft.com http://www.research.megasoft.com/people/cmcurtin/ I speak only for myself Death to small keys. Crack DES NOW! http://www.frii.com/~rcv/deschall.htm