Officials said emergency workers communicated with the window washers via a portable radio lowered by rope from the roof . Two window washers rescued from window - washing rig high above collapsed . A platform collapsed at One World Trade Center with the tower on it . The tower is the country 's tallest building at 1,776 feet .
Two window washers rescued from window - washing rig high above collapsed . A platform collapsed at One World Trade Center with the tower on it . The tower is the country 's tallest building at 1,776 feet .