101.   Age is a variable.

102.   Age is an issue both in keeping the equipment in service and in the changing role of the service.

103.   Age is an issue now because the Energy Department is no longer turning out new warheads or new plutonium fuel to replace the existing stock.

104.   Age is another consideration.

105.   Age is not an easy answer.

106.   Age is not the only factor, experts say.

107.   Age is not what it used to be.

108.   Age is nothing but a number.

109.   Age is one of the few things in life that are irreversible.

110.   Age is the enemy.