1.   The first is the need for great secrecy.

2.   This I did in what I thought were circumstances of great secrecy.

3.   Although she lied to her parents, insisting that she had no foreign boyfriend, she has continued the romance, in great secrecy.

4.   At the time, German forces were driving the British back in North Africa and the English military was operating in great secrecy.

5.   Because Delta Force operates in great secrecy, no outsider knows the names of its members, much less where they live.

6.   A half-hour away at Los Alamos, scientists in great secrecy created the atom bomb.

7.   But Henri Nestle and Milton Hershey discovered, independently and in great secrecy, how to make milk chocolate.

8.   However, the escalation of horsepower continues and in great secrecy engine designers are experimenting with ceramics, magnesium and Kevlar.

9.   In great secrecy they bartered old clothes for flour.

10.   Pakistani newspapers, quoting unidentified government sources, said US agents prepared for the raids with great secrecy and approached Pakistani authorities only when they were ready to pounce.