AL-QAEDA leaders in Iraq are planning the first “large-scale” terrorist attacks on Britain and other western targets with the help of supporters in Iran, according to a leaked intelligence report. Spy chiefs warn that one operative had said he was planning an attack on “a par with Hiroshima and Nagasaki” in an attempt to “shake the Roman throne”, a reference to the West. Another plot could be timed to coincide with Tony Blair stepping down as prime minister, an event described by Al-Qaeda planners as a “change in the head of the company”. The report, produced earlier this month...