Meh, aren't cross-Atlantic flights potentially re-routed through US soil? Isn't it common that flights to Canada need to make an emergency landing which conven

Meh, aren't cross-Atlantic flights potentially re-routed through US soil? Isn't it common that flights to Canada need to make an emergency landing which conveniently allows US customs to filter passengers? Diverting planes seems something that states just do. This time it's a smaller state that uses big boy tools.