Should there be speed limits on freeways?

[True Federalist (진정한 연방 주의자)]

The problem we have is that in too many places the speed limits are or have been set for reasons other than ability to safely control a vehicle so that people have have gotten into the habit of ignoring them.  Setting speed limits for any other reason on any road is a bad idea, no matter how well intentioned because doing so causes people to ignore speed limits.

[True Federalist (진정한 연방 주의자)]

If I'm not mistaken, there used to be no speed limits in rural Montana.  Is this still the case?

No.  They set a 75 mph speed limit IIRC.  It wasn’t even the case that they had no speed limit, rather the limit was R&P (Reasonable and Prudent) which basically meant that they couldn't pull people over for speeding because of the difficulty of gettuing a jury to agree with the cop that the speed was unreasonable, but if excessive speed contributed to you having a crash they could charge you for going too fast.  They went to 75 mph to have something easier to administer.