Las Vegas Review-Journal – New casino development in Las Vegas is on lockdown. Gaming expansion into states beyond recently approved markets is virtually nonexistent. Those are two reasons regional casino giant and M Resort owner Penn National Gaming struck a deal with a San Diego-area Indian tribe to develop a long-stalled casino complex in Southern California. A third reason is simple. Penn National, which has 29 casinos nationwide, views the planned $360 million Hollywood Casino Jamul as an opportunity to increase its customer base in an untapped market. The development is 20 miles east of downtown San Diego, California’s second-largest…