Someone did. They missed by inches. I would imagine they beefed up security a bit since then...
And, in most cases, it's a good thing that our head of state is well-protected. Otherwise, we'd have a new president every week and the executive branch would be a mess...oh....hmmm....
It's funny, I have very successful friends who used to say something similar. As one put it: "If you sell out at 20, you got no heart. If you haven't sold out by 30, you got no head."
That friend group are a great bunch of guys in their personal lives, family men and good providers, down to the last one. At the same time, they are 100% part of the problem. They are landlords and marketing execs. And every one of them has an exceptionally high EQ. (Except Jake. He's my favorite and he fixes industrial baking equipment. Used to be a bartender. You know the type - staring daggers when you interrupt his conversation with a regular customer. Jake didn't GAF about EQ.)
Anyway, it's not that they are evil. They are just the "normal" amount of selfish. They have comfortable lives. They read their newsfeeds without ever thinking any deeper. They aren't the Nazis - they are the people who empower Nazis by remaining laser-focused on their job and their family, ignoring politics unless their property tax is at stake.
I think it's possible to be a good husband and an overall good person, but not a good citizen. Zombies, if you will.