[Macca]

It's a hard and fast rule. You must either be a US citizen or permanent resident. ITAR is the reason.

[Osmium]

That's a real shame, but understandable. It's too bad they have to artificially restrict their talent pool like that.

[maaku]

Get on the track for citizenship. We in the aerospace industry have a long and glorious tradition of Americanizing engineers for space program.