1.   Washington was concerned about maintaining secrecy and preventing leaks.

2.   The container should be kept upright to prevent leaks.

3.   And villagers sometimes cover their thatched roofs with plastic tarpaulins to prevent leaks.

4.   At minimum, a bag of sand should be enclosed in a tough plastic bag to prevent leaks.

5.   BioSafe officials say almost any of the old-style landfills that lack liners to prevent leaks might save money from landfill mining.

6.   Alcivar declined to describe the safeguards that were in place, or to say whether new procedures had been adopted to prevent such leaks of information.

7.   But unlike investigators in the Ramsey case, the FBI has so far been able to prevent leaks to the media in the Sund-Pelosso killings.

8.   Can I skimcoat the foundation to help prevent future leaks and make it look better than it does now?

9.   Engineers here say that while the rust may be ugly, only seven cylinders have leaked and that they believe they can prevent leaks by better management.

10.   For example, a plasticlike coating used to line tanks and prevent leaks often sloughs off in a few years.