Baroness Warsi has accused the GMB union of ruining the Jubilee weekend. The Conservative Party chairman was commenting on strike action by staff employed by airport ground service company Swissport, which includes stoppages over the Queen's Diamond Jubilee bank holiday in June. The GMB said the introduction of new rosters would lead to a reduction in baggage handlers' incomes. A spokesperson for the airport authorities said it was disappointed but expected flights to operate as normal.