A French riot policeman's view of the violence that swept through France in May 1968; plus the man who led a team that made safe two nuclear weapons that had crashed to ground in the US. Also, the origins of Montessori education, one of the airmen on the Dambusters' raid and actor Jane Asher remembers John Osborne's radical 1950s play, Look Back in Anger.

Photo: Protesters face police in front of the Joseph Gibert bookstore, Boulevard Saint Michel in May 1968. (Credit: Jacques Marie/AFP/Getty Images)