Wal-Mart is apologizing for a store in Slidell, La., which refused to bake a cake designed as the Confederate battle flag but accepted a request to bake a cake that looked like the ISIS battle flag. Chuck Netzhammer, a local resident, presented his story in a YouTube video Friday, saying, “Alright, Wal-Mart, you’ve got some explaining to do. I went to go buy a cake from you all the other day with this image on it and y’all wouldn’t do it. I went back yesterday and managed to get the ISIS battle flag [cake instead].” Netzhammer shows the ISIS battle...