Greenpeace projected a message of remembrance onto Big Ben at 0123 am Friday 26th April, the time reactor 4 at Chernobyl exploded 10 years ago. There were also projections onto Sizewell nuclear power station in Suffolk and the offices of BZW (Barclays deZoete Wedd) the firm advising the British Government on privatisation of the nuclear industry. London, UK.