David Pogue, a columnist well known to Mac afficianados, has written an article in The New York Times about laptop security — in a nutshell, how to make sure you keep your hands on it. With the increased security at airports after the attacks of 9/11 — you and your laptop getting separated for a period of time — and the attractiveness of laptops as an easy theft item by their very nature, Mr. Pogue offers some tips and insights into new technology that may help you to make sure that your portable computer, as well as the files on it, remain safe and secure. If you use a laptop — particularly if you travel — read this. You might be glad you did.