Earlier quoted context omitted.
> I've only done the lazy thing of looking at Wikipedia, but it appears that the attack on the Twin Towers on 9/11 is the only event carried out by non state actors in recent history that killed more than 1000 people. That doesn't offer much guarantees though. Before that one, the ceiling was much lower for attacks in the US (or even elsewhere), but it suddenly got to 3000 at one go. Here's a kind of disaster that ca…
His analogy is specious. One reason that there is little violence caused by legal immigrants is that there have been screening processes in place. Equating the status quo of US immigration policy with dismantling nuclear deterrents is ridiculous.
He talks about odds of being "killed by an immigrant" though -- doesn't say "by a legal immigrant" specifically.
Plus, in places like France and Germany it's often not even immigrants, it's citizens that have been born there (of immigrant parents) that have been radicalized post-facto.