Story here. I dunno how significant the cert denials actually are, though. One concerns carry by 18 to 20 year olds, the other possession on a college campus. The Court might just have felt that these issues were too narrow to merit review. The last time I checked, the Court was getting around 10,000 petitions per Term, and taking under a hundred of them. These petitions may just not have made it to the top.
