Watch the video of how the Australian authorities react when someone—dressed either as an American or Arab tourist—films the Sydney Harbor Bridge and a nuclear reactor.

The synopsis: The Arab is intercepted within three minutes both times, while the U.S. tourist is given instructions on how to get inside the nuclear facility.

Moral for terrorists: dress like an American.

By the way, Lucas Heights is a research reactor. It produces medical isotopes and performs research, and doesn’t produce power.