This will likely turn most of the country against this union, and turn them against unions in general.
Border guards are to strike on the eve of the Olympics, the busiest day in the history of Heathrow, despite their union securing the support of just one in 10 staff.
Up to 5,500 immigration officials will strike next Thursday in a dispute about job cuts and pay, disrupting nearly 130,000 passengers as they arrive the day before the Olympic opening ceremony.
The striking workers, from the Public and Commercial Services union, will take further industrial action during the rest of the Games by refusing to work overtime.
Last night, senior Conservative MPs accused the union of â€śholding the country to ransomâ€ť as ministers privately questioned the legitimacy of the industrial action. Just a fifth of the unionâ€™s 16,000 members voted, with 57 per cent of them in favour.