11.   Both futures and options can be used to protect against losses in stock portfolios.

12.   A federal judge ruled that U.S. export restrictions on software used to protect computer data through encryption are an unconstitutional restraint on free speech.

13.   A widely scattered population means lots of tiny branches rather than the giant fortresses that most cities use to protect their money.

14.   Breaking the codes used to protect Internet communications is also an NP problem.

15.   But information technology can be used to protect consumers, too.

16.   But on the Harbor Island tarmac, bolt-cutters, clipboards and tiny ladders are the weapons used to protect the nation.

17.   But the only weapons these offices can use to protect human rights are public exposure and U.N. condemnation.

18.   Ceramic packages are used to protect semiconductors on circuit boards.

19.   Chicken wire will be used to protect the trunks of trees closest to Johnson Creek, Hill said.

20.   Conservation easements are used to protect habitat on private land and landowners are encouraged to restore habitat in urban and rural areas.