On many major roads in the US, refusing to exceed the speed limit is unsafe behavior.<p>With respect to speed, safety comes from matching your speed to that of the surrounding traffic, even if the surrounding traffic is on average exceeding the posted limit. Road-raging vigilante behaviors by drivers intent on enforcing their (incorrect) ideas about safety (i.e., deliberately driving slowly or occupying a passing lane to try to force passing traffic to slow) is actually far more dangerous and in many states is illegal and ticketable.