1. Big Oil maintained a corporate policy that prohibited its pilots from flying corporate aircraft after a pilot had reached the age of 60 and forced such pilots to involuntarily retire at age 60. This rule mirrored a rule used by the Federal Aviation Administration that applied to pilots flying for commercial airlines. Based on the "age 60 rule," Big Oil forced at least three pilots to retire in 2006 and 2007. These pilots brought suit against Big Oil alleging age discrimination. What are the legal arguments that each party should make to justify their position.