Five Best Ideas of the Day: September 18

1. Islamic State is hunting for Syrian chemical weapons that eluded international inspectors.

By Paul D. Shinkman in U.S. News and World Report

2. The true promise of education technology is in differentiating learning to meet the needs of each student.

By Jennifer Carolan in EdSurge

3. A robot’s ethical dilemma: How would a self-driving car weigh the safety of its passengers against the risk to other motorists?

By Aviva Rutkin in New Scientist

4. A disaster relief organization is giving military veterans a chance to do good and recapture the spirit of their service.

By Jonathan Lesser in Medium

5. Future social scientists will have a wealth of data from Facebook likes and shares to truly understand what moves us.

By Jonathan Wai in Quartz

The Aspen Institute is an educational and policy studies organization based in Washington, D.C.