I doubt they were going to enter via a controlled border access.
Kinda cold to be swimming. I've spent quite a lot of time along that stretch of the river and there's always Detroit PD, RCMP, Sheriff Dept, USCG and CBP boats patrolling. I've also seen USCG and CDOT aircraft. The DPD Harbormaster HQ and 2 USCG bases (Mt Elliott and Belle Isle) are within two miles of where they were caught. Nah, they were clueless idiots.
