Radio (1.4 GHz) versus IR luminosities (8–1000 μm) for the QSO2s in our sample. The radio-FIR correlation of star-forming galaxies from Bell (2003) is shown as a solid line (slope of 1.05 ± 0.04), with a correlation scatter of 0.26 dex. All the QSO2s in our sample show a radio excess. Different colors indicate whether the QSO2s are red ETGs, spirals, or interacting galaxies (see Table 2).