1.   Extra security was designed to prevent trouble inside the Opera House.

2.   First of all, he needs extra security, warmth, and engagement.

3.   Residents have been warned to take extra security measures following a spate of burglaries.

4.   The extra security alone showed that an important event was brewing.

5.   What optional extra security devices are available?

6.   Airlines worry that the cost of this extra security will drive ticket prices up so high that people will stop flying.

7.   This second door is an extra security measure and can be locked in position during the day.

8.   The effect will be limited if the extra securities are Treasury bills and if some are purchased by discount houses and banks.

9.   Also Oxfam is paying for extra security.

10.   The police are now advising publicans in rural areas to consider extra security measures.