Top panel: the distribution in column density (N_H) and BAT 14−195 keV luminosity of the BAT nine-month survey Seyfert galaxies as given by Tueller et al. (2008). The red crosses and blue diamonds represent our sample column density from the BAT survey and the Suzaku analysis. Bottom panel: the BAT nine-month Seyferts subsample is defined by Log N_H ≥ 23 and/or Log L_{14 − 195  keV} ≥ 44.5 (dashed lines), i.e., the most luminous and absorbed sources are selected. The symbols refer to the radio type as classified from the literature, the thicker symbols indicate the present sample.