in recent interviews with intelligence and military officers and consultants past and present, I found intense concern, and on occasion anger, over what was repeatedly seen as the deliberate manipulation of intelligence. One high-level intelligence officer, in an email to a colleague, called the administration’s assurances of Assad’s responsibility a ‘ruse’. The attack ‘was not the result of the current regime’, he wrote. A former senior intelligence official told me that the Obama administration had altered the available information – in terms of its timing and sequence – to enable the president and his advisers to make intelligence retrieved days after the attack look as if it had been picked up and analysed in real time, as the attack was happening.