1.   Although he has little academic reputation, often speaks in hyperbole, and maintains tight secrecy around his work, scientists take his claims seriously.

2.   Peru bought the Russian jets, the most sophisticated in South America, last year amid tight secrecy.

3.   But while U.S. officials said they were looking at how the case was handled, they also defended the tight secrecy as necessary to protect informants and agents.

4.   Police cordoned off the courthouse in the early morning to enforce a blanket of tight secrecy around the case.

5.   The issue was discussed in tight secrecy by the executive board, with IOC directors, staff and even minute-takers asked to leave the conference room.

6.   The negotiations have been conducted under tight secrecy.

7.   The State Department-sponsored negotiations have been conducted under tight secrecy.

8.   The Swedish Academy conducts its deliberations on the prize in tight secrecy and even the names of nominees are not released.

9.   To enforce the tight secrecy surrounding the case, police cordoned off the courthouse early in the morning.

10.   Analysts have pointed to the tight secrecy around the Central Clinical Hospital itself as evidence that Yeltsin is far worse than the Kremlin admits.