No you are not being irrational. Customs and Border Protection have been known to detain and force US citizens to reveal their passwords: https://arstechnica.c

No you are not being irrational. Customs and Border Protection have been known to detain and force US citizens to reveal their passwords: https://arstechnica.com/tech-policy/2017/02/what-could-happen-if-you-refuse-to-unlock-your-phone-at-the-us-border/ https://arstechnica.com/tech-policy/2017/02/what-could-happe... The chance of this happening to you is very small, but not zero.