WWE Blood censoring

Have you wondered why in the last few months unless it is on accident WWE does not have any blood in there shows? I'm sure the fact that the WWE went down to a PG rating plays a role in it but if you watch the Classic matches on MSG they blur the blood out in older matches. I think the last bloody match in the WWE was during the draft when Batista and Edge speared each other and Batista's head was cut open.....