Why did he take NASA issued equipment out the US? What if another country did the same search?
And then went to a foreign country to hang out with a bunch of other people from all over the world (some of whom, may come from countries that would like to steal that data).
I am not sure I blame the border security folks for thinking they should look at the phone. His situation is RIPE for being espionage or a victim of same.
Getting pissy about the "secret data" when he's on the way back IN the country but taking it out without a care in the world about it? No sympathy here.