Britain bracing for a mass strike by public sector workers; the industrial action is seen as a major challenge to Prime Minister David Cameron's plans to change strike laws.
In just a few hours, teachers, civil servants, and transport workers will walk off their jobs and march in London. Public sector workers want to vent their anger at the government over its salary freezes and spending cuts. Some unions say they expect up to two million workers to join the walkout. Cameron has pledged to change the law to limit strikes. The premier called on people to go to work and not join Thursday's strike.