When the bug was discovered (by an undergraduate architect major) they worked nights and weekends to weld the bolted joints. http://www.slate.com/blogs/the_eye

When the bug was discovered (by an undergraduate architect major) they worked nights and weekends to weld the bolted joints. http://www.slate.com/blogs/the_eye/2014/04/17/the_citicorp_tower_design_flaw_that_could_have_wiped_out_the_skyscraper.html http://www.slate.com/blogs/the_eye/2014/04/17/the_citicorp_t...