alt Hacker NewsI wouldn't assume that to be the case. It's illegal under federal law to destroy evidence of a crime. Just what the government needs to do to show that you've destroyed evidence of a crime and not just the sexting you did with your girlfriend is a pretty murky area of law, from what I can tell.
I would not present a phone to customs that had clearly just been wiped.
You're speaking nonsense since there was no charge or warrant against him. There was no crime that was committed. People are free to use their phone for f sake. People who reason as poorly as you will lead to all remaining rights being lost.