Binned skew-C_ℓ statistics from the SMICA map for a) local; b) equilateral; and c) orthogonal. Theoretical curves are not fitted to the data shown, but are plotted with the amplitude (the only free parameter) determined from the KSW technique. There is no evidence for detection of primordial NG. Error bars are derived from the covariance of estimates from 1000 simulations. There are mild correlations between data points in all figures, but very strong correlations at high ℓ in the local case, reaching correlation coefficients r> 0.99 for ℓ > 1750.