If you're a US citizen, they have to let you in – eventually. In the meantime you may be sitting in a room without access to your phone.
With customs everywhere, you're usually better off answering their questions without asking why they want to know. Coming back from a visit to family, they wanted to know my three sisters' ages among other irrelevant stuff.
With customs everywhere, you're usually better off answering their questions without asking why they want to know. Coming back from a visit to family, they wanted to know my three sisters' ages among other irrelevant stuff.