With the clock ticking before the sands run out on the 109th Congress and Democrats take the reins for the first time in 12 years, retiring Senate Majority Leader Bill Frist is working feverishly to assure passage of the set of two-year tax break extensions (known as the extenders." He is working to pass a clean version of the popular package, unencumbered by Christmas tree ornaments. He is working to pass a version with a provision delaying implementation of cuts in Medicare payments to physicians. "I've got both tracks working," he said yesterday. Let's see if he can avoid a train wreck this time.