1.   Also, computer industry trends toward distributed computing, and nomadic or mobile computer users, only exacerbate security challenges.

2.   But now, America has no more serious security challenge than to identify the enemy who has declared war on this country and to win that war.

3.   But we must also reconfigure our defenses to meet the security challenges of this new era.

4.   Certain details also underscore national security challenges for the Bush administration.

5.   Fourth, he said that the United States must be prepared to face new security challenges like cyber-terrorism and the worldwide impact of infectious diseases like AIDS.

6.   He smiled repeatedly, yet spoke of spending sleepless nights pondering the new security challenges facing America after the end of the Cold War.

7.   He smiled repeatedly, yet spoke of spending sleepless nights pondering new security challenges after the end of the Cold War.

8.   However, he also acknowledged that such powerful capabilities would also raise new security challenges.

9.   In a global economy with global security challenges, America must look to the East no less than to the West.

10.   In an interview with Cox Newspapers, the interim army chief of staff explains the structure and the leadership of the nascent force and the security challenges it faces.