"Gasland" filmmaker Josh Fox and writer Bill McKibben are a two-man anti-fracking force. Together, they've become every bit a symbol of the movement to ban drilling in the Northeast as is the anti-fracking emblem that drives a red slash through "Frack." But antagonism toward drillers among local anti-fracking coalitions masks a more complicated story of how larger and more deep-pocketed national environmental groups are calibrating their positions on gas in the era of Josh Fox.