You know you aren't applying to work at Wal Mart, you are applying to work with the President. Yes if I was applying I know and expect the type of questions that were asked. This is not something Barack Obama thought of on his own. Applications to work for the President are very long and do include some of the questions Obama asked. Also the government is going to do an intense background check anyway.
The whole own a gun thing was just part of the question, they asked if they were licensed legally to own it, as well as if they were involved in criminal activity or caused harm to people using a gun. He just doesn't want anything to bite him in the butt later because so much attention is paid on him. That and he is trying to weed out lobbyists. You know the anti Obama crowd will be on anything they perceive negative regarding anyone working for him. Even if they have to stretch the truth to smear him. Like how taking an intense application to work in the White House as a confirmation of him supporting the Patriot Act!!!
I'm sure Clinton and Bush had similar types of applications as well. It may not have been as thorough but Obama doesn't mess around. It didn't mean they won't get hired he just likes to be one step ahead and know if there is anything people could use against him. He rather know now than have it sprung on him by Sean Hannity and Faux News. You know President Obama's secretary had a uncle that shot and killed someone with an illegal sawed off shot gun. You know they would do it to.
Besides isn't Obama against the Patriot act and wants to get rid of it?