Greybull, WY – Family members of two men killed in a 2002 air tanker crash in Colorado are suing the federal government. Rich Schwartz and Milton Stollak died while fighting a wildfire when the left wing fell of their plane, igniting fuel and sending the plane crashing to the ground. Their survivors already filed suit against the plane's owner, Greybull-based Hawkins and Powers Aviation. Now, they've added six federal agencies to the lawsuit. The families claim the federal agencies saved money by relying for decades on private contractors, such as Hawkins and Powers, and encouraged those contractors to fly older aircraft. Hawkins and Powers has denied responsibility in previous court filings.