May 3 - Anti-war militants attempt to disrupt government business in Washington, D.C.; police and military units arrest as many as 12,000, most of whom are later released.
August 9 - British security forces in Northern Ireland detain hundreds of guerilla suspects and put them into Long Kesh - the beginning of an internment without trial policy. 20 die in riots that follow
November 24 - "D.B. Cooper" hijacks a plane with alleged bomb, demands and gets a ransom of $200,000 and parachutes out over the Cascade Mountains. Never caught.
... 45 to 64, and 17.2% who are 65 years of age or older. The median age is 41 years. For every 100 females there are 92.6 males. For every 100 females age 18 and over, ...