Wondering why you can't buy a copy of a newpaper from a vending machine in Las Vegas? Turns out the porn industry is to blame. Though you probably already figured as much. This Question of the Day is only available today, August 9th, after which you'd need a Las Vegas Advisor subscription to access it (the coupon book is a good deal for many Vegas travellers, depending on your needs, but I wouldn't recommend signing up just to learn about the newspaper/vending machine/porn nexis).