John Gray examines what lies behind our desire to protect our "way of life".

"If people are forced to choose between insecurity and a promise of stability through tyranny", he writes, "many will opt for tyranny".

He argues that spending vast amounts of money on "grandiose wars while large sections of our own people languish in neglect and despair can only leave our societies more vulnerable to extremist demagogues".

Producer: Adele Armstrong.