Big Change In Advertising

     It wasn't until some time after Obama was inaugurated in January 2009 that I noticed an obvious increase in the number of African-Americans in advertising.  It appeared that in any television ad that had more than one person in it, there was always an African-American there, too.  Same with print advertising.  There has been at least a three-fold increase in the number of African-Americans in ads.  My question is, was this spontaneous or directed?  Thirteen percent would be appropriate.