There has been plenty of hang wringing on the Left lately about so-called "dark money," cash spent on political campaigns by undisclosed donors. Andy Kroll over at Mother Jones posted a piece a few days ago which breathlesly warns of "5 Signs the Dark-Money Apocalypse Is Upon Us." Most of the fuss centers around cash spent via 501(c)(4) and (c)(6) organizations. Donors to such outfits are not subject to the same disclosure laws as those who pony up directly to campaigns or to political action committees. To be sure, opinions vary as to whether obscure political giving should be considered kosher. But would you be shocked if I told you that the Left has taken to using "dark money" as a term of art to discourage donations to conservative charities?