shira goodman: thanks for having me. rosemary: so, first things first. is what happened earlier this week in florida, could it have been prevented? shira: i think a lot of these school shootings could have been prevented. and there's a lot of steps we could take. so, this young man, clearly troubled, he bought a gun. it's a semi-automatic rifle, high capacity magazines. those things were banned for a time in this country. we could more strictly regulate them. you can buy those things in pennsylvania in a private sale without a background check. so, we have an access issue. we also have the issue of, did this man get the help that he needed? why is it so much easier to buy a gun than to access mental health, than to have somebody say something? you know, just a couple weeks ago in pennsylvania, in western pennsylvania, a school shooting was averted because there was a kid on a bus who said, "i'm going to shoot up the school." another kid told his parents, who called the school, who called police. they took a cache of weapons from his room, and now that chi