Some science to this, but in reality....messing around with DST.....dumps crap on virtually everyone....NOT just blacks.
If you asked a hundred people about this.....probably toward 90-percent would say to dump it and just go back to the way it was originally.
The fact that CNN tried to say DST is racist? Well....it's one of the dozen problems they have in general....trying to politize things on a continual basis.
