by Mark Finkelstein May 2, 2006 Katie Couric put on a display of industrial-strength umbrage this morning when Bill Frist suggested the soon-to-be CBS anchor is opposed to drilling in ANWR. In the wake of yesterday's Today show segment on Frist's proposal for a $100 gas tax rebate in which Matt Lauer gave respectful treatment to Rush Limbaugh's suggestion that the rebate amounted to treating taxpayers like ladies of the night, Frist must have known that he was walking into the lion's den this morning. At one point, Katie hit Frist with excerpts from two letters to the editor of...