Wow. Can we do that here?
Sure...
Well, at least of you're a Democrat you can get ABC to alter their programs...
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.
Might get in a bit o' trouble for that one! :)
You ask can we do that here. Well, during WWII letters home were heavily censored. And President Lincoln shutdown pro-Confederate press during the Civil War. I think when a nation's survival is at stake it is reasonable to stop those who are fanning violence.