21.   A call option is an agreement that gives the investor the right to buy a specific security on a specific date at a specific price.

22.   A large amount of securities on the market brings their price down, pushing the yield up.

23.   A passenger and airport security on Tuesday.

24.   Administrators immediately began instituting tighter security on the medical school and its laboratories.

25.   Bush said that Fox had been supportive of the U.S. anti-terrorism efforts, including the need to beef up security on the border.

26.   But basketball was the only order of the evening Friday, Harris having already quashed discussion of his job security on Thursday.

27.   But Farmer has found that the backlash against SATAN appears to have done little to improve security on the Internet.

28.   But Farmer and Venema have held firm in their belief that only by releasing SATAN to everyone will the level of security on the Internet improve.

29.   But the major obstacle to opening the bridge remains concerns about the lax security on the Afghan side.

30.   But the president stressed that security on the Internet should be improved without jeopardizing the entrepreneurial potential of e-commerce.