[rasz]

"FBI and the US Army Special Operations Command" .. "in the shower"

so US citizen detained and waterboarded by US army personnel on US soil. Posse Comitatus Act, Detainee Treatment Act, Eighth Amendment, Section 2340A of Title 18. The list goes on and on.

[monkeywork]

Detained yes, waterboarded is a big jump. In most hotels the bathroom is the most secure room, no windows, one point of ingress egress, quick and easy to search for weapons, etc.

I suspect bathroom is likely sop for securing a target.