Is Taxation “Voluntary”?

The Senate Majority Leader, Harry Reid, says taxes are voluntary in this interview, while also acknowledging that there are civil and criminal penalties for not paying them.

Seems to me, that if I don’t pay them, an enforcement officer with a badge and gun will come after me.  For Democrats like Reid, they must be “voluntary”.  Witness tax cheats like Tom Daschle and Treasury Secretary Timothy Geithner being nominated for cabinet positions in this administration!  It sure looks like a “voluntary” system for them.