The distances above are based on a reaction time of 0.67 seconds, which assumes the driver is alert, concentrating and not impaired. Driving when tired, distracted or impaired significantly increases reaction times, so the thinking distances above should be regarded as minimums.
Vice-President Aaron Burr killed his political rival Alexander Hamilton in a duel in Weehawken, NJ, resulting from a published letter that implied Hamilton had made derogatoryâ¦ comments about Burr's character.
Secret Service agent George Hickey is seen brandishing a rifle as the limousine carrying a wounded President Kennedy, with agent Clint Hill on the back, speeds away from Dealey Plaza in Dallas on Nov. 22, 1963. One theory is that Hickey accidentally shot JFK.