I’ve seen old reels of construction workers building New York skyscrapers in what seem like incredibly dangerous conditions - notably, men working on narrow bars of steel far above the ground with no harnesses. (e.g. https://www.reddit.com/r/OldSchoolCool/comments/r9c3po/risking_lives_to_build_new_york_skyscrapers_1920/)

Was the work considered highly dangerous? Did many people fall to their death? What 1st person accounts do we have?