Oh, my.
Ellen, I was born and raised in an area that, when and if Yellowstone erupts, will disappear. Most of my extended family lives up there, as well. This is not a matter of 'amateur science' here, but of pure geological research and "real" science. Yellowstone is indeed a super volcano which sits on a 'hot spot' that has 'gone off,' about every 650,000 years or so, give or take two or three thousand years one way or another. The last three eruptions were 2.1 million years ago, 1.2 million years ago and 640,000 years ago. So, eh....it could go any time, since it's sorta 'due,' or it could wait another 400,000 or more years. Nobody knows, and we don't have enough data yet, or enough knowledge about volcanoes in general, to predict when. We WILL be able to, according to my geologist relatives (and I have a ton of those) figure out when Yellowstone is getting REALLY dicey. We hope. There haven't been a whole lot of changes there over the last few decades, whether you like the 'yellowstone bulge' that raised the lake (and then lowered it again) or not.
So...it's not unthinkable that Yellowstone could erupt within our lifetimes. As I mentioned, it's sorta 'due.' However, it could hold out for another couple of hundred thousand years. It WILL erupt sometime, however, and when it does....phew....g'bye America and hello global climate problems that the folks blaming humans for global warming have no clue about.
What we should NOT do is give the paranoid folks too many problems about it. Yellowstone WILL explode someday, soon or late. We should also not, if we happen to live near that glorious place, pack up and move to Mexico...which is the closest habitable place that might be agriculturally usable after the eruption, for many, many years.
I'd be more worried about Aetna or Vesuvius, frankly....and there is a supervolcano over there that might well go off before Yellowstone does. Perhaps India will start up it's volcano field again.
Or we could get hit by an asteroid.
Me? I'm nearly seventy, I have a disease that will probably take me out before I'm 75 if I make it that long, and I'm not going to get all exercised about it. My kids are on their own. They know all about Yellowstone and the 'ring of fire' and earthquakes and all the other natural disasters that the planet is prone to. We make our choices and live our lives, and stop going on 'YELLOWSTONE IS GOING TO ERUPT!" carnival rides to get the adrenaline up.