Before revision:  We find that the percolation threshold vanishes in the limit of large networks for \gamma<3, while it is finite for \gamma>\le 3,  although its value for \gamma between 3 and 4 is exceedingly small and preasymptotic effects are huge.
After revision:  We find that the percolation threshold vanishes in the limit of large networks for \gamma\le 3, although its value for \gamma between 3 and 4 is exceedingly small and preasymptotic effects are huge.