The Detection of CN in Interstellar Comet 3I/ATLAS / Comet C/2025 K1 (ATLAS) is deeply depleted of C2 / FAN-SHAPED DUST EMISSION FROM THE NUCLEUS OF COMET 3i: www.astronomerstelegram.org?read=17352 / www.astronomerstelegram.org?read=17351 / www.astronomerstelegram.org?read=17350