Americans ‘overreacted’ to the 9/11 attacks, according to the newly appointed first female vice-chancellor of Oxford University. Terrorism expert Professor Louise Richardson said the 2001 atrocity provoked such a response because violent extremism was a ‘new experience’ in the US. Widespread panic ensued in America after al-Qaeda hijacked four passenger airliners and flew them into buildings, causing almost 3,000 deaths. In contrast, British citizens have shown themselves to be more ‘resilient’ in the face of terror when dealing with violence during the Troubles in Northern Ireland, she said.