What exactly were the contents of the interview? Did Harry reveal the dual cores his and Voldemort's wands share? If not how did he explain his escape? As far as I'm aware he never reveals this to anyone.
Before the interview he maintained the lie that Cedric was killed by Voldemort not Wormtail. Did he reveal how Wormtail killed Cedric? If not how did he explain how Voldemort did it before he regained a body? Did he describe Voldemort regaining his body at all?