Complex sentence: Randy leads the public in speaking out against the TSA and the fact that it allowed a terrorist with a gun and a baby past a security checkpoint, announcing that they're all determined to contact Harington with a public sueance.
Split into simpler sentences: Randy leads the public in speaking out against the TSA and the fact that it allowed a terrorist with a gun and a baby past a security checkpoint. Randy also announces that they are all determined to contact Harington with a public sueance.