December 3, 2010 - More than 150 pilots converged on United Air Lines’ World Headquarters on Wednesday to express their displeasure with United’s continued practice of outsourcing. Braving a chilly, snowy Chicago day, the pilots walked in four orbits during the two-hour picketing event. United and Continental pilots were joined by their brethren from Delta, American, Mesa, AirTran, and ExpressJet.