Sinister places such as North Korea.
In 2006, Mossad tracked a large group of Syrian Arabs traveling from Damascus to Dubai to Hong Kong and then to Beijing and then to Pyongyang, North Korea.
And then a few months later a North Korean ship left carrying Radio Active Material for Syria and then Israeli Spy Satellites monitored the shipment being transported to a site where the Syrians were building a Nuclear Power Plant.
Israelis bombed that place.
Syrians were so shocked that Israel discovered this that they denied the whole episode.