Until the police prove that they will enforce existing speed limits there should be no increase in speed limits.  Speeding is anything over the posted limit and should be enforced that way.  We all know that a good percentage of drivers will always drive 5-10 mph above the posted limit so people will be driving 85-90 mph without concern of getting a ticket.  I pull a 8,000 pound trailer on the interstates at just above 60 mph, partly because that is what is recommended and partly for safety reasons.  The last thing I need is for some traffic traveling 20-25 mph faster than me.  The difference in speed of traffic is what makes for unsafe roads.  NO TO HIGHER SPEED LIMITS MR. JONES.