In this March 12, 2012 photo, Bettina Siegel, center, poses with her son Asher, 9, and daughter Lily, 12, at their home in Houston. Siegel, whose blog The Lunch Tray focuses on kids food, was so upset over a report of ammonia-treated meat trimmings in school lunches she started an online petition asking Agriculture Secretary Tom Vilsack to put an immediate end to the use of pink slime in our children&#x27;s school food. As of Monday she had more than 175,000 online signatures. (AP Photo/Pat Sullivan)
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