I know that gun control isn't a popular topic here in Gun Country, but I'm going to write a gun control column anyway. Don't panic, however, because I'm not advocating more gun control laws - just better enforcement of those that are already on the books. I thought about last month's Newtown, Conn., elementary school massacre as I visited my 8-year-old twin grandsons in Seattle for Christmas. A mentally deranged shooter murdered 20 grade-school kids, ages 6 and 7, and six adults during in that deadly rampage. Gun nuts and gun control nuts promptly came out of the woodwork with …