SCHEDULED TO LAUNCH ON THE EVE OF APRIL FOOLS’ DAY, the new “liberal” network Air America Radio is to begin airing on stations in New York City, Chicago, Los Angeles, Portland and, maybe, San Francisco, five liberal cities where it can rouse the already-converted. Several of its key programs can also be heard via XM Satellite Radio’s new “America Left” Channel 167, also launching March 31. (Air America’s Vice President of Programming Dave Logan was programming executive at XM.) Its streaming internet audio might also be available at airamericaradio.com.Experts are betting that the new network will fail to make money...