Aden Tanner is a seasoned military leader and admiral with over four decades of experience in the Federal Navy. He was appointed to Chief of Federal Security on 07 APR 3303. Tanner's exact remit is unknown, but his inaugural statement suggests he's ordered to investigate the mysterious ships. This promoted media outlets to give him the nickname 'alien tsar'. He's declined to answer media inquiries saying "When we know more, you'll know more".
Admiral Tanner made this statement:
"Having reviewed all available information, we can confirm these craft are active primarily within the Pleiades Nebula and the space in and around the Maia and Merope systems. The significance of these locations – if any – has not yet been determined. We can also confirm, despite rumours to the contrary, that carrying an Unknown Artefact does not attract the attention of these vessels."
"A number of independent pilots claim to have seen evidence that these ships have attacked human vessels, but no empirical verification has been recovered. Nevertheless, I would urge the galactic community to treat these strange ships with extreme caution."