Final steel beam lifted at 4 World Trade Center

Monday, June 25, 2012 | 4:43 p.m. CDT; updated 5:13 p.m. CDT, Monday, June 25, 2012

NEW YORK — A final steel beam was lifted Monday atop a new World Trade Center skyscraper — the first expected to open at the site next year since the twin towers were decimated on 9/11.