> the second problem can be as simple as having Google organise an all-expenses-paid team activity to bait the subject into jurisdiction.

This actually happens. I know that the FBI once organized an all-expenses-paid trip to a "conference in Hawaii" for certain Chinese chemists it wanted to nab.

The corollary is that if you have reason to expect you're wanted by American Feds, never travel outside China, Russia, and certain European states that are extraordinarily hesitant to extradite to the US (e.g. Ireland).