Leave it to the left to turn something as sensible as insulating your house into a big-government organized-labor boondoggle. Dismal reports from Spain and other European countries about investing public funds in solar and wind power manufacturing seem to have shifted attention lately toward the humble goal of "weatherization" -- making our buildings more efficient by replacing windows, installing insulation and caulking up leaks, and by "retrofitting" -- buying new efficient furnaces and appliances for the deserving disadvantaged. President Obama's proposed $6 billion program known as HOMESTAR, a.k.a. Cash for Caulkers, is only one of many energy efficiency initiatives taking...