On the Cover
Wild ephedra grows in Oljeto Canyon, Utah.

Spring 2003 Contents

Message from the Editor

News

Survival tips from the wild kingdom
$50 million needed for landmine detection
Why it's smart to vaccinate health care workers against smallpox
Unexpected benefits of drug prevention
Economics of age structures
Gaping hole in dental care
Smaller gifts for higher education
Ripple effects of rising health insurance premiums

Perspectives

For Better, Not Worse
Low-income women may no longer be
tolerating abuse

Hazardous Haste
Warning systems themselves could be
dangerous

The Influence Component of
Counterterrorism
A systems approach
By Paul K. Davis and Brian Michael Jenkins

COVER STORY

Preponderance of Evidence
Judging what to do about ephedra
By Paul G. Shekelle, Margaret Maglione, and
Sally C. Morton

Crash Courses
Hard lessons from educational interventions
By Susan J. Bodilly, Brian P. Gill, Mark Berends,
Sheila Nataraj Kirby, Jacob W. Dembosky, and
Jonathan P. Caulkins

Commentary
Beware the weapons of mass creation
By Caroline S. Wagner