Even with all the safety equipment the contractors are using, the sight of them up there makes the hairs on the back of my neck stand on end.
Compare and contrast the same operation being undertaken in the 1980s.
Incidentally, the Palace of Westminster is in urgent need of restoration and refurbishment work. It's not the sort of project you can do with steel girders and pre-cast concrete sections.
Restoration and Renewal of the Palace of Westminster