Comment: Left wingers inciting violence against political opponents and attacking their supporters is nothing new.

In Canada, the LPC held an online photo-shop Harper contest.  Liberals were photo shopping Harpers head onto the iconic image of Lee Harvey Oswald getting shot by Jack Ruby.

They were giddy with rapturous glee until Canadians found out and were aghast with horror.  Then all of a sudden, the mea culpa of "going to far" and "in poor taste" started.

Funny how it wasn't too far or in poor taste until Canadians recoiled in horror.