Brits don't seem too happy their passports were used:

Ministers are understood to be furious that an alleged hit squad which murdered a Hamas leader in Dubai last month cloned the passports of six unsuspecting Britons, who are now living in fear of reprisals.

Israel, which has not denied involvement in the murder, had previously promised that Mossad, its secret intelligence service, would never use British passports to help its agents carry out covert operations.