There are extraordinary secret surveillance images – now largely forgotten – that in their own grainy and mysterious way, tell the story of missed opportunities that maybe, just maybe, could have stopped the horrific suicide attacks that took place in London 20 years ago.
They are images of the ringleader of the 7/7 bombings – first caught on camera at an al-Qaeda-associated training camp in the Lake District in 2001.
Two more images from 2004 show him – name and intentions then unknown – meeting a different cell of bomb plotters outside London and being followed by an MI5 team as he made his way back to Leeds.
