What American corporation is in the business?
SSA Marine, for one - see above thread.
See my post #75 - in addition, SSA Marine operates ports in Mexico, Panama, and Chili - and someone else posted they are going to run the Umm Qasr port in Iraq. That being said, I have two points:
1) Shutting down the P&O sale will have ripple effects, including, I am sure, retaliation against SSA Marine in Mexico, Panama, and Chili.
2) SSA Marine did not bid and/or cannot raise $7 billion for P&O.