Nothing i don't feel that threatened to need to.
I don't carry because I "feel threatened." If I felt threatened about a place or situation, I would avoid it. I don't think my house is going to burn down but I carry fire insurance. I don't think anyone is going to try to break into my house tonight but I already have locked the doors.
I am sure those teachers and students at Sandy Hook didn't feel threatened either.
(Luke 11:21 KJV) When a strong man armed keepeth his palace, his goods are in peace:
(Luke 22:36 KJV) Then said he unto them, But now, he that hath a purse, let him take it, and likewise his scrip: and he that hath no sword, let him sell his garment, and buy one.