Apostasy in Islam taken place. Justifications offered for the alleged executions vary, but one of the most common theories advanced is that they were in retaliation for the 1988 attack on the western borders of Iran by the PMOI Mujahedin. However, this does not fully account for the targeting of other leftist groups who opposed the Mujahedin invasion. Salman Rushdie is a prominent contemporary figure accused of apostasy. In 1989 a fatwa was issued by Ayatollah Khomeini, the ruler of Iran at the time, calling for the death of Salman Rushdie for the blasphemy of authoring the book "The Satanic Verses". Hossein Soodmand,
The Satanic Verses riot against the book in Pakistan, the Ayatollah Ruhollah Khomeini, then Supreme Leader of Iran and a Shi'a Muslim scholar, issued a fatwa calling for the death of Rushdie and his publishers, and called for Muslims to point him out to those who can kill him if they cannot themselves. Although the British Conservative government under Margaret Thatcher gave Rushdie round-the-clock police protection, many politicians on both sides were hostile to the author. British Labour MP Keith Vaz led a march through Leicester shortly after he was elected in 1989 calling for the book to be banned, while the Conservative