Ok truck driver.  How rude of you.  I hope you remember last week on Hwy. 169 N. between Humboldt and Fort Dodge.  I was driving to F.D. with my 12 year old daughter and I had my cruise control set at 60pmh yet you were riding so close it was scarry.  I was not only scared for myself, but my daughter.  Who kept looking out the back window at you.  You'd slow down a little and speed right back up.  At one point you were so close I couldn't see your license plate!  The speed limit on Hwy.169 is only 55pmh.  So SLOW DOWN!  You don't own the road.  And when I was able to get over for the so called slower traffic lane you still couldn't pass me because there was a hill and you couldn't get up speed.  Yet I stayed steady at 60mph.  But a couple times I had to speed up cuz I felt you would hit us!  Is it intimidation you're trying for?  I hope you realize there are many innocent people on the roads.  You need to slow down before you cause an accident. 

This drivers plate number was PR0527  (Iowa)  Cab color - light blue - pulling a round tank (gasoline? other liquid?  not sure.)