On Monday the British parliament removed the People's Mojahedin-e Khalq of Iran (MEK) from the U.K.'s list of banned terrorist organizations. The decision upholds a Court of Appeals' ruling in May that there is no evidence linking the Iranian opposition group to terrorism, and that it should be free to recruit, organize and raise money in Britain. Western and Arab intelligence services have long appreciated the MEK for its sources deep inside Iran. The group was the first to provide evidence of Tehran's secret nuclear project. But the U.S. and Continental Europe shouldn't rush to follow London's move. Although the People's Mujahedeen has won the support of many Western politicians, it is not the force for democratic change it claims to be.