Hybrid and electric cars will reduce America's dependence on petroleum / Perry Bell -- Electric cars are not yet ready to replace traditional cars / Jason Perlow -- Why electric cars are cleaner / James Kliesch -- The environmental benefits of electric cars vary state to state / Daniel Yawitz, Alyson Kenward, and Eric D. Larson -- More hybrid vehicles will not fairly address climate change / Robert Engelman -- Electric cars make the United States more competitive / Pew Environment Group -- China not embracing electric cars / Nathan Bomey -- Selling electric vehicles like smartphones will make them appealing / Carl Pope -- Hybrids are the most economically viable alternative fuel vehicles / Jeremy Michalek, interviewed by Megan McArdle -- The government should subsidize electric cars / Nick Chambers -- The government should not subsidize electric cars / Mark J. Perry -- A mileage tax to replenish highway revenue is fair / Gerald Bastarache -- A mileage tax to replenish highway revenue is unfair / Ethan Epstein.