[gluczywo]

This story has the happy ending.

To understand what may happen to the US visitor read this book: https://www.goodreads.com/book/show/30524537-the-russians-ar...

I can confirm it's not fiction as it was written by father of my friend.

TL;DR from goodreads:

During a short business trip to California, Irishman Denis Sugrue was arrested and accused of spying for Russia. But this is no Cold War thriller - this is 2005 in Bush's America.

Facing ten years in federal prison, Sugrue must negotiate the corrupt corridors of American justice and attempt to convince FBI agents that the fact of his innocence outweighs the embarrassment of a failed prosecution.