WASHINGTON - JUNE 17:  Senator Jon Tester (D-MT) (2nd L)  speaks as Senator Max Baucus (D-MT) (L) , EPA Administrator Lisa Jackson(2nd R) and Health and Human Services Secretary Kathleen Sebelius listen on June 17, 2009 in Washington, DC. The EPA announced the agency has determined that a public health emergency exists at the Libby asbestos site in northwest Montana. Getty Images logo Getty Images 6 months ago

WASHINGTON - JUNE 17: Senator Jon Tester (D-MT) (2nd L) speaks as Senator Max Baucus (D-MT) (L) , EPA Administrator Lisa Jackson(2nd R) and Health and Human Services Secretary Kathleen Sebelius listen on June 17, 2009 in Washington, DC. The EPA announced the agency has determined that a public health emergency exists at the Libby asbestos site in northwest Montana.