Well I wouldn't think the Chinese Army or anyone for that matter could appear out of thin air. Jimmy Carter gave the Chinese all the air in the world to breath in Panama, and Bill Clinton did likewise with COSCO at the old Terminal Island Naval Base in Long Beach, CA. To not already know, that Hutchison Whampoa are included in Mexican Port expansion and operations, and then to exclude them from any other NAFTA bidding, is not clear thinking.
Conceivably, yes, Hutchison Whampoa could bid on any American public works projects, including the Trans-Texas Corridor, and NASCO Corridor. And the way the U.S. is going, I wouldn't be a bit surprised after the Dubai fiasco. That's my opinion, and I stick by it.
I see now, that when you wrote of "the Chinese Army cutting right through America's heartland" you were writing figuratively.