To honor the 17 classmates and faculty members killed by an armed former student just last month. The survivors have one very loud, very clear message on gun violence. Never again. Their frustrations gaining National Momentum and driving the conversation on the polarizing gun control debate. Those students are leading the march on washington right now but they dont stand alone. Star power is backing them up here in the nations capital. Ariana grande, miley cyrus, Linmanuel Miranda are a few of the names taking part today. Youre looking at the main stage right there on pennsylvania avenue, hundreds of marches in fact scheduled across the country today. Cnn has Team Coverage with reporters spread out across the country. Cnns Diane Gallagher is with a group of students from parkland, florida right here in the nations capital. Diane. Reporter were not too far from where you are, about a mile, and thats because this group of Marjory Stoneman douglas alumni, teachers, students, parents, they