Imprisoned for expressing opinion?

Question

http://news.yahoo.com/s/ap/20080815/ap_on_re_us/truck_nooses

Since when has it been illegal to express your opinion on your own property?

Answer 1

We are circling the toilet bowl.

ben===grow up

Answer 2

Bunch of racist rednecks.

Well to answer your question, he was driving the truck on state property, not technically his.  

Answer 3

Nooses are not an "opinion", they are a threat.

Answer 4

*Nick*, what that young man did was an act of outright intimidation (as you and I very well know in the USA)!

Answer 5

He was hanging nooses off the back of his truck?  I'd take that as threatening behaviour!