So my scenario might come true, perhaps.
There's LOTS of ways to get information
Indeed there is. And if you think that beeing "soft-tortured" or drugged is any more humane than being photographed in a silly position with no clothes on, your relatives A: didn't teach you anything, or B: they don't know much.
The detainees are sort of different than what you're probably thinking about as normal people. Remember Mike Spann? Know how he died? He was bitten to death - they ripped his throat out.
And you're telling me that a soft spot in their psyche shouldn't be exploited, to spare your sensibilities?? Cry me a river.