U.S. media are bought, paid for and terrified, so attempting to use them to communicate with Americans is useless. Why not have Sheriff Arpaio schedule a series of news conferences at which he keeps revealing his findings as he uncovers them, specifically and loudly inviting the media from every major country in the world to attend.
Don't freeze out the American people, but pointedly have foreign media invited – and have them seated in the front rows at the conferences.
Allan Sanford