Wyatt Andrews explores:

It's one of the most explosive and important political charges of the election: "He wants to tax your health benefits," Barack Obama said.

Obama's charge was that that John McCain wants to tax the health insurance benefits Americans buy through employers. "That's a $3.6 trillion tax potentially increase on middle class families," Obama said. "That will eventually leave tens of millions of you paying higher taxes."

It's a little complicated and Obama slips in that "potentially" to avoid a Palin-style lie, but it's still clearly fear-mongering and unfair.

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