Earth to NBC: Listen to Ann Coulter's Latest Tirade

From Media Matters:

"On June 20 and 21, right-wing pundit Ann Coulter refused to explain -- and even expanded upon -- her recent claim that Rep. John P. Murtha (D-PA) is "the reason soldiers invented fragging," military slang meaning the intentional killing of a member of one's own unit. On the June 20 broadcast of the Mike Rosen Show on Denver's Newsradio 850 KOA, Coulter referred to her fragging comment as one of her "best lines" and refused to confirm to host Rosen that she was not "suggesting that anybody should off John Murtha," stating only: "It is what it is." On the June 21 edition of Fox News' Hannity & Colmes, Coulter further expanded upon her statement, asserting that if Murtha "did get fragged, he'd finally deserve one of those Purple Hearts," referring to the two Purple Hearts Murtha was awarded during his service in the Vietnam War. Coulter first suggested Murtha is "the reason soldiers invented fragging" in an interview with the website Right Wing News."

Again, why does NBC legitimize this garbage?