Re:A US-born NASA scientist was detained at the border until...
by EGreg on Sunday February 12, 2017 @02:56PM
(#13630304)
But they won't know whether anyone refused to cooperate or not
Otherwise you get rubber hose cryptanalysis: https://news.ycombinator.com/item?id=13629728
Bruce Shneier's advice: https://www.schneier.com/blog/archives/2009/07/laptop_securi...
There's also the possibility of seizure -- not getting your encrypted hard drive back because you refused to co-operate.