61.   The Aliperti case was the last chance for McNamara to prove his worth as a star witness for the government.

62.   The Bush presidency has proven its worth singly by getting the United States out of the Anti-Ballistic Missile Treaty with a minimum of bother.

63.   The essence of sport is a hearty challenge, and for a tennis player trying to prove his worth, the U.S. Open is the ultimate test.

64.   The investment proves its worth when the knowledge I gained guides me through a repair I would have been unable to perform without it.

65.   The only thing that matters is the World Cup, and Bora --- again --- is proving his worth when it counts.

66.   The rest are artists of the day who would prove their worth later.

67.   The reason is an improved computer model, which has proved its worth over the last three years.

68.   They still have to prove their worth in such cases as the long, bitter and still-unresolved Detroit newspaper strike.

69.   They give lobbyists a chance to prove their worth.

70.   This is taming the wilderness, emulating the explorers of yore, surviving hardship together, braving the elements and proving the worth of ... this is plain nuts!