Public reaction to the Boston Marathon bombings and the identity of the perpetrators reveal a very different nation from the one reflected in the traumatised and occasionally hysterical responses to the terror attacks of September 11, 2001. The magnitude of the two attacks was, of course, very different — thousands were killed and major national landmarks were destroyed or damaged in 2001, whereas the Boston bombings killed three people and injured roughly 260. Still, it was the first major attack on the US since 2001 and the contrast between now and then is instructive.