Do social media echo chambers really exist? 17 academics dove into Facebook’s data to find out. And there are reports that Telsa hired a ‘diversion team’ to suppress complaints about the vehicles driving range. So, what repercussions could this have for the Tesla brand?   Meanwhile, a whistleblower has made claims about alien bodies and UFO crash sites in a US Congress hearing. It comes as NASA is set to hand down its own report into UAPs, so what's going on? Jennifer Dudley-Nicholson, Future Transport Reporter at AAP and Cam Wilson, Deputy Editor at Crikey join Rae Johnston on Download This Show.