After 9/11, safer skyscrapers rise

Ten years after terrorists slammed a pair of fuel-laden jetliners into the iconic twin towers in lower Manhattan, engineers around the world are designing stronger skyscrapers to resist the worst that nature and evil minds can throw at them.

A prime example is 1 World Trade Center under construction at Ground Zero itself.

The sky-piercing, 1,776-foot-tall spire takes into account everything investigators learned from the collapse of the World Trade Center’s twin towers on Sept. 11, 2001, making it “an outstanding building for terrorist resistance,” said Gene Corley, a lead investigator of the federal study and a vice president at engineering firm CTL Group.