Detroit is also right across one of the Great Lakes from Windsor or Toronto? Canada which also has a large population of R.o.P. with a tunnel between them. Aren't tunnels a target?
Yes, Windsor. Large bridge across, not sure about tunnel, but maybe.
Windsor and Detroit have excessively large RoP populations.
Whoever said maybe it's more likely that it will be an uprising rather than a direct attack on the location -- well, that's an interesting twist on it. More sensible than attacking so many of their own people.