31.   But the movement to let investors buy and sell securities on line is still in its infancy.

32.   Buying securities on margin is effectively a form of speculation.

33.   Congress could also pass legislation to beef up security on airplanes which would reassure a nervous public.

34.   Clinton ordered Transportation Secretary Federico Pena to issue new directives on airline security on international and domestic flights that apply to passengers and cargo.

35.   Despite the lifting of the threat, officials said that security on California bridges will remain at its current high level.

36.   Even those, like Mrs. Gross, who have built successful businesses, operate with no job security on contracts that can be canceled at any time.

37.   Federal officials reported no genuine major breaches of security on Tuesday.

38.   Fraser thinks concerns about security on the Internet, which probably have slowed the growth of on-line commerce, are starting to decrease.

39.   Given the creativity of the criminal mind, security on networks may never be guaranteed, however.

40.   He has called in the feds to run the housing projects and put cops and former gang members as security on public transportation.