Faster than the speed of light is actually the same as slower than the speed of light when traveling in time with respect to space. It makes more sense when changing the reference frame when crossing to the other side where the change in space is greater than the change in time. Therefore motion is always the speed of light or less, it's just the reference frame that changes. space/time (miles/hour) vs. time/space (hours/mile).

Eventually they will figure out that time has three dimensions just like space. It's hard to detect Neutrinos for example when they are traveling in time that is not necessarily parallel to the direction of time that we are traveling.

 At lease according to the Reciprocal System Theory:

http://www.reciprocalsystem.com/dbl/index.htm