London, UK. Wednesday 17th October 2012. Flashmob protest at Crossrail site in Central London by Unite union members in protest against blacklisting and sackings of union officials and members. Credit: HOT SHOTS / Alamy Live News

- Image ID: CM6NHB

London, UK. Wednesday 17th October 2012. Flashmob protest at Crossrail site in Central London by Unite union members in protest against blacklisting and sackings of union officials and members. Credit: HOT SHOTS / Alamy Live News

HOT SHOTS / Alamy Stock Photo

Image ID: CM6NHB