Having explosives is banned I believe, at least the ones the Joker had in his faux batcave. Didn't seem to stop him from building any.
On a side note, I saw this movie last night and it's pretty damn good.
And bombs are illegal in America. He did make some and wired his entire apartment with them. Should we legalize explosive devices just because criminals can get their hands on them anyway?
If people were more vigilant and paid attention to stuff instead of being afraid of every little thing that goes bump in the night and cowering away, we'd have less of these things. Some guy mails away for some devices and it's pretty clear he's not a contractor or someone who'd need those sorts of things, you'd think that someone would go "Hey, wait a minute...", but no, they just send it right on its merry way.
Blame guns and assault weapons all you want, but they're just inanimate objects. If a person is going to use something to kill a bunch of people, especially a demented and mad genius like this guy supposedly was, they're going to have more than a few options to move forward with their plans in case one option doesn't work. You can't control against crazy people. You can take everything away from someone, but if they have a homicidal streak, there's nothing that can be done to stop it, short of giving them a post-birth abortion.
I don't own any assault rifles, but I know people that do, and by and large, even though they have crazy conspiracy thoughts, they're not really a danger to anybody else. If you can own a gun responsibly, there's absolutely no reason you shouldn't be able to have one. Taking guns away from people as an overreaction to an isolated incident is not the way things should precede. It would be like banning all Chinese made toys because a kid chokes on one of them.
**** happens. The solution isn't more laws and regulations, the solution is to be vigilant and if something doesn't add up, figure out a way to handle it, and if you can't handle it, then find someone else who can assist you.