Why don’t the major record labels sign more politically outspoken artists? It’s not because of politics, as most record execs are liberal. Rather, as one explained to the WSJ today, “The biggest problem with politial music has not been that it’s controversial, but that it’s boring.” Nonetheless, the same WSJ story reports that record labels are signing lots of new overtly political acts. Up next, a Green Day “concept album” title “American Idiot.”