Government must set priorities.

• Author: Book, Elizabeth G.
• Position: Security Beat

The most pressing needs for homeland defense are new measures to protect mass transit and maritime security, actions to prevent radiological and biological terrorism, and stronger protection against possible attacks on chemical plants, said David Isenberg, a senior analyst for the British American Security Information Council.

Isenberg brought up these points in his new book, "Less Talk, More Walk: Strengthening Homeland Security Now," published by the Center for Defense Information.

"There's an old saying that military historians like: 'He who tries to defend everything ends up defending...