Israel is reported to have reactivated a unit known to send agents posing as Canadian tourists to foreign countries to carry out assassinations.
The Kidon Unit—named for the Hebrew word for bayonet—is part of Israel's overseas intelligence service, the Mossad.
Canadian travel documents have been a favourite of the Mossad for decades, and some in Canada say that practice is likely to resume, no matter what Israel promises.
The last time Mossad agents were caught using Canadian passports was in 1997. Two hit men had tried and failed to inject a lethal poison into the neck of the director of the Hamas press office in Amman, Jordan.
Canada recalled its ambassador in protest. It was the third time Mossad agents had been caught posing as Canadians, and the third time Israel promised to stop.