http://www.dailyxtra.com/canada/news-and-ideas/news/us-custo...(HN thread: https://news.ycombinator.com/item?id=13702981)
Specifically, this part:
“A month later, André attempted to fly to New Orleans again. This time, he brought what he thought was ample proof that he was not a sex worker: letters from his employer, pay stubs, bank statements, a lease agreement and phone contracts to prove he intended to return to Canada.
When he went through secondary inspection at Vancouver airport, US Customs officers didn’t even need to ask for his passwords — they were saved in their own system. But André had wiped his phone of sex apps, browser history and messages, thinking that would dispel any suggestion he was looking for sex work. Instead, the border officers took that as suspicious.
“They went through my computer. They were looking through Word documents,” André says. “I had nude photos of myself on my phone, and they were questioning who this person was. It was really humiliating and embarrassing.”
“They said, ‘Next time you come through, don’t have a cleared phone,’ and that was it. I wasn’t let through. He said I’m a suspected escort. You can’t really argue with them because you’re trapped,” he says.”
He wasn’t necessarily declined solely because he wiped the phone (they already suspected him due to the previous encounter), but they made it pretty clear they don’t like it since they considered that reason enough to not let him through a second time despite all the supporting paperwork.