21.   Security was tight at the polling stations.

22.   The success of the modernisation drive was called into question as was the security of party leaders who supported the developmentalist line.

23.   There is heightened security around Heathrow following the bomb threats.

24.   There is tight security at the airport and all baggage is being searched.

25.   This bus ticket suggests that security was not a major consideration.

26.   Security is tight this week at the polling sites.

27.   Personal financial security is a powerful motivator to keep control of the business.

28.   UN officials, however, had insisted that internal security was a Cambodian matter.

29.   Money market securities are securities with maturities of less than a year.

30.   Hotel security is an international business.