<p>Over the weekend, ABC gave substantial attention to riveting surveillance video of a mother and daughter using guns to fight off an armed robbery in a liquor store where they work in Tulsa, Oklahoma. After first running a full report on Saturday evening’s <em>World News Tonight</em>, the network ran additional full reports on Sunday’s <em>Good Morning America</em> and <em>World News Tonight</em>, while CBS, NBC, and CNN have so far ignored the story. </p>