Staff from Harrods and some of London's world renowned museums go on strike on the last Saturday before Christmas, one of the busiest days for shopping in the year, to demand fair pay and improved working conditions. Those on strike say that despite huge bonuses being paid to Harrods executives, their calls for better conditions and Christmas bonuses have been ignored. They are joined by security guards from the Science Museum, Natural History Museum, and V&A Museum, who are striking after years of stagnant pay and real-terms pay cuts. IMAGES AND SOUNDBITES