I think the USA doth protest too much. What about the 'buy American' rules in the USA, as highlighted by the STAR 21 report recently:
"Due to restrictive rules which are embedded in many individual pieces of legislation at both federal and state level, such as the Defense Federal Acquisition Regulations, the US market is difficult to access. In practice this reflects a 'Buy American' policy."
"In 2001 US Congress approved legislations in which it explicitly limited the procurement choice of the Department of Defense to commercial Boeing aircraft...this piece of legislation would effectively exclude the purchase of an Airbus air tanker even if the enterprise offered a competitive product."