He was not afraid to question the validity of some of the experimental results, in which he was helped along by an audience member, who sounded suspiciously like John Moffat (I cannot view the video). However, Yavin pointed out that it is difficult to collectively dismiss results from DAMA, PAMELA, ATIC, CDF (multi muons), the WMAP haze and Integral.
The model in question looks at a breaking of a dark sector $SU(2) \times U(1)$ symmetry, resulting in a $4 \times 4$ mass matrix (for 4 bosonic states) whose parameters can be selected to fit all results mentioned above, although not via the same decay processes. To everyone's amusement, an audience member asked whether or not there were more parameters in the model than data points. Anyway, the CDF lepton jets are supposed to originate from dark photon decays. One suspects that we will see many more talks along these lines in the near future.