YD Impact hypothesis bounce-back?

I'm getting dizzy but it seems that a few days ago the Firestone et al hypothesis was on the ropes, even bent forwards on its knees, but now it seems it might bounce back – with a vengeance. At http://cosmictusk.com July 6th in a post by George entitled 'Swiss Kiss: Nanodiamonds and Iridium independently confirmed at Bern INQUA session on Younger Dryas climate crash' – so the hypothesis still has legs and is walking, it would seem – in spite of all the negativity over in the US. Apparently, iridium has been found at the YD boundary in SW England (no further details at present as this is from an abstract released prior to the conference).