Is cap and trade really "dead"? After all, didn't Sen. Lindsey Graham say so? The South Carolina Republican's recent remarks -- or snippets of them -- have ricocheted around Capitol Hill and beyond in recent weeks, lending momentum to the notion that the congressional effort he is helping lead no longer plans to implement a system that requires companies to buy and sell emission credits. But Graham's remarks appear to be more political than substantive. Indeed, cap and trade remains very much a part of the debate on what legislation will look like when the closed-door negotiations are finished.