Pretty damn good. The nutroots hate it, which means it is deadly accurate.
Being a former liberal Democrat, I can vouch for much of this. The general ethos of the leftist mind necessitates that you must resist restraining (conservative) impulses. Logic and reason are restraining impulses. Since modern liberalism is primarily a state of unrestrained emotional turbulence, the liberal must find reasons for excusing his most base emotional instincts and instead embrace the "liberation" that comes from not being able to summon reason to control your impulses. Many consequently fall prey to the tempting natural impulse of letting emotion override logic and reason. The liberal creed dictates that feelings are more important than anything, and that they shall hold court over reason.
That's why a liberal will be willing and able to find just about any reason to compare Bush to Hitler or Bin Laden (or whoever), but has a hard time thinking of reasons and using that wild imagination of his/hers to think about how a driven and financed terrorist cell could smuggle and detonate a dirty bomb (or even just a fertilizer bomb) into some part of a major city and kill thousands of lefty like-minded thinkers just like him.