11.   Concentrating on such behaviors is probably the best deterrent against terrorism, said Bogdan Dzakovic, a security specialist with the Federal Aviation Administration.

12.   David Carpenter, the assistant secretary for diplomatic security, is leading a team of security specialists from various federal agencies in that study.

13.   He quickly worked his way up to a mostly administrative job as a security specialist.

14.   He invited government security specialists to consult with him.

15.   IBM also shuns the title, giving its Internet specialists titles like security specialist, Java programmer, electronic commerce engineer and enterprise messaging director.

16.   In particular there is little agreement among software security specialists on just how to classify the sections of computer code that are often targeted by hackers.

17.   In return, in the words of a security specialist, Arafat was supposed to act, from an Israeli point of view, as a security subcontractor.

18.   Joel Seligman, a securities law specialist and author of a history of the SEC, said he was concerned about the impact that SEC budget cuts could have.

19.   Limiting the risk, and damage, to corporate computer systems is the goal of Palmer and the other security specialists at IBM.

20.   Meanwhile, Harris and other international security specialists in Maryland are developing a system of voluntary controls and oversight of potentially dangerous research.