Early this year, a religious radical calling himself Abu Hamza had a question for the deputy leader of al-Qaeda regarding the Egyptian secret police. âAre they committing unbelief?â he tapped on his keyboard. âAnd is it permissible to kill them?â A few weeks later, an answer came from a man with a $25 million bounty on his head, Ayman al-Zawahiri. Killing the police is justified, Zawahiri replied, because they are âinfidels, each and every one of them.â The exchange was part of the latest pro