1.   As a result, the other side got accurate advance information about missions more secret to the American public than to Hanoi.

2.   But he always kept one secret to himself.

3.   PGP, as the system is now known, was designed to keep the contents of e-mail messages secret to everyone except their intended recipients.

4.   The secret to success in the modeling business, Bart said, would not be so secret to anyone who had read Dale Carnegie.

5.   The weary Sorenson expires alone in a hotel room, taking a sad life secret to the grave.