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Shih-Ho Chao

The One World Trade Center building, second from right, is reflected in the windows of the 9/11 Museum, in New York, Monday, March 23, 2015. The first stair-climb benefit will be held at One World Trade Center in May to raise money for military veterans, two foundations, the Stephen Siller Tunnel to Towers Foundation and the Captain Billy Burke Foundation, formed after the 9/11 attacks announced Monday. (AP Photo/Richard Drew) (AP)

Engineering ourselves against terror attacks: How building design changed after 9/11

Shih-Ho Chao