ANTHRAX guitarist Scott Ian believes that steps should be taken to expand gun control so that firearms don't end up "in the hands of people not responsible enough to own one."Last week's Colorado theater shooting left 12 dead and dozens more wounded, with the shooting suspect, James Holmes, allegedly having used a semiautomatic weapon and a high-capacity ammunition magazine to commit the crimes. In a series of tweets, Ian offered his opinion on the matter, writing, "To those asking, I am a gun enthusiast that has a big problem with how easy it is for people that have no business owning a gun to get one. The old argument of 'if guns are outlawed, then only outlaws will have guns' means nothing. The 'outlaws' get their guns illegally and use them to perpetrate crimes that get them paid, they don't go shooting innocent people in movie theaters. There's no money in that. Inhuman maniacs get their guns legally and plan their murders to the letter. That is what I have a problem with. So to all my fellow gun enthusiasts, I don't want your guns, I don't want guns in the hands of people not responsible enough to own one. How do we make that work? I have no idea. Have a nice Sunday with someone you love and hope that what happened in Aurora never happens again." "Weapons of war don't belong on the streets," Democratic Senator Dianne Feinstein, of California, said on "Fox News Sunday", according to Bloomberg.com. "We've got to sit down and really come to grips with what is sold to the average person in America." During an appearance on the same program, Republican Senator Ron Johnson of Wisconsin said, "I don't think society can keep sick, demented individuals from obtaining weapons." According to the Los Angeles Times, a Gallup poll conducted in January found that 50 percent of people are at least somewhat satisfied by the state of America's gun control laws, while 42 percent either very or somewhat dissatisfied.