TASK DEFINITION: In this task, you are given a public comment from online platforms. You are expected to classify the comment into two classes: threat and non-threat. Threat is a statement that someone will be hurt or harmed, especially if the person does not do something in particular.
PROBLEM: Comment: "What you are saying is that anyone can be given a rifle and some bullets and they can go out and kill someone who is supposedly protected like the President of the United States."
Nailed it.
I've done plenty of reading on the Kennedy assassination. Oswald fired from an upper floor of a building. He had a clear shot.
One out of every ten presidents has died from a violent act at the hands of ordinary human beings.

SOLUTION: Threat

PROBLEM: Comment: Ahh isn't that nice, the democratic socialist party of California, trying to leash their lap dogs..

SOLUTION: Non-threat

PROBLEM: Comment: Good column, thanks. 
But "her relentless antagonism toward Mr. Putin, to the point of being banned from Russia, will not ingratiate her with Mr. Bannon or his boss as they warm up to Moscow."  So what?  Bush Jr. pushed us to dive into the 2003 Iraq War, we said no, and today everyone from Trump to Trudeau has said that war was a big mistake.

Trump is a mistake, so is Bannon, and this ill-conceived pro-Russian position of theirs is hype and spin that will fail after the two Big Men preen a while. Canada can go its own way if it wants to. Sovereign nation. We didn't die as a result of any trade punishment for our position in 2003 and we won't now.  There is such a thing as principle. Putin is a dictator.

SOLUTION:
Non-threat