Could Japan have sent troops aboard a cargo ship to seize or damage the Panama Canal locks at the time of Pearl Harbor?
Short answerIt appears feasible in principle, perhaps using a couple of liners, but the troops would be very unlikely to return.
NotesJapan could plausibly have attempted an operation against the canal within the scenarios available at the time. A couple of liners operating in the area are suggested as a means of carrying the force. The operation would offer little prospect of recovering the troops. Its feasibility therefore does not imply that Japan could bring the personnel home afterward.