11.   Finding qualified crews to operate these increasingly high-tech drilling rigs is a major worry for drilling companies.

12.   Handling the tangle of electrical outlets and cables in clumsy spacesuits is a major worry.

13.   Her major worry is how the next president will shape the balance of the Supreme Court, since as many as four justices could retire during his term.

14.   It has become a major worry for Viacom, its parent company.

15.   One major worry, officials say, is whether once sanctions are withdrawn Buyoya will renege on his commitment to the peace talks.

16.   The Albanian border has also been a major worry for Yugoslav generals because KLA partisans have been infiltrating through seven mountain passes along that frontier.

17.   The creeping cold is a major worry of the few international aid agencies working to help refugees.

18.   The growing number of teenagers bearing children has been another major worry in recent years, but it, too, is less of a concern now.

19.   The major worry, officials say, is that there will not be enough rain this summer.

20.   The secondary is always a major worry on a team without a threatening pass rush.