They have no jurisdiction or power here.
As long as what you're saying isn't illegal/criminal, you can say whatever you like.
It's called the 1st Amendment:
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.