Sir Ken Macdonald said terrorist fanatics were not soldiers fighting a war but simply members of an aimless "death cult."
The Director of Public Prosecutions said: 'We resist the language of warfare, and I think the government has moved on this. It no longer uses this sort of language."
London is not a battlefield, he said.
"The people who were murdered on July 7 were not the victims of war. The men who killed them were not soldiers," Macdonald said. "They were fantasists, narcissists, murderers and criminals and need to be responded to in that way."
America, do you want it?