We have Aircraft Carrier fleets, all of theh planes on there are superior in their role to ANYTHING the Chinese have. our subs are better along with their crews.
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Our high-value assets remain the Boomers and our carriers. Don't be suprised to see a major U.S. counter-buildup!
The Soviets stole our stuff, too, all through the years. Remember when a Soviet trawler rushed to pick up a discarded rocket launcer from one of the moon missions? Right out in the open water for all the world to see. Ayn Rand made the point (former Soviet citizen herself) that under dictatorship, creativity and thought is frozen. The evil totalitarians survive by stealing the higher level technology from free countries. Same with the terrorists. Those savages could not do anything without the universities that educated their leadership.