Public worker unions are under pressure as states try to balance their budgets. Dean Baker and E.J. McMahon debate whether they’re the root of the fiscal problems. Plus: if the U.S. doesn’t use Libyan oil, why are prices high at the gas pump? Environmentalist Lester Brown on his concerns for an imminent “global food bubble”; and film critics Dana Stevens and Matt Zoller Seitz talk about the changing nature of documentary films ahead of the Oscars.