Threats to peace talks as the U.S. seizes an Iranian tanker in the Strait of Hormuz; the horrific mass shooting - at least 8 children – ages 3 to 11 years old – are killed in Louisiana; dozens of animal activists are arrested while attempting to free beagles from a Wisconsin biomedical research facility; a hot air balloon makes an emergency landing in a California backyard and the hero principal - who tackled a gunman at his Oklahoma school - is named "prom king."
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