This New York Times story may be an important heads-up as to what is likely to happen with the Plame investigation:

  As he weighs whether to bring criminal charges in the C.I.A. leak case, Patrick J. Fitzgerald, the special counsel, is focusing on whether Karl Rove, the senior White House adviser, and I. Lewis Libby Jr., chief of staff for Vice President Dick Cheney, sought to conceal their actions and mislead prosecutors, lawyers involved in the case said Thursday.
  Among the charges that Mr. Fitzgerald is considering are perjury, obstruction of justice and false statement . . .
  Mr. Rove and Mr. Libby have been advised that they may be in serious legal jeopardy, the lawyers said, but only this week has Mr. Fitzgerald begun to narrow the possible charges.