?Gravity Always Wins?: How the U.S. Can Face the Crisis of Unsafe Bridges

A quarter of U.S. bridges may be deficient, but focusing on just the most dangerous will have the most impact. Image: Partnership Border Study
If you left your grandma?s old wicker chair out on the porch all winter ? and the next, and the next, and the next for 20 years ? would you still trust [...]

Ignazio Giunti Timo Glock Helm Glöckler