Robin Lloyd

Minding the Gun Law Gap

Federal law requires criminal background checks on people obtaining guns in stores, pawn shops, and from other licensed dealers. More than a dozen states also require background checks for privately exchanged guns. A new survey finds that the overall rate of background checks is higher in those states.

Flood-Risk Figures Get Friendlier

A new approach to assessing changes in U.S. flood risks in the past 30 years reveals a progressive rise in risk in the northern U.S. and a drop in much of the southern U.S. And the risk is expressed in elevation measures that make sense to non-scientists rather than in cubic meters per second.