Ackerman reports that "U.S. planes are now attacking Moammar Gadhafi’s ground forces outside major Libyan cities":
[T]he war can be said to have entered a new phase on its fifth day. Libyan aircraft aren’t flying, and the no-fly zone now extends “boundary to boundary” across the Libyan coast. With total mastery over Libyan airspace, the U.S.-led coalition now targets Gadhafi’s most hardcore ground units. That brings the U.S. to the brink of yet another complex urban war, this one waged from the skies.