The hypothesised condition could be easily aleviated by hiring those non-US contractors who are performing so well overseas. Bombardier's bid for the high-speed Amtrak line between New York and Washington, D.C. being messed up by U.S. regulators [1], however, points to political factors.

[1] http://www.economist.com/blogs/gulliver/2012/07/amtraks-high...