Where are Compton-thick radio galaxies? A hard X-ray view of three
  candidates
  We present a broad-band X-ray spectral analysis of the radio-loud active
galactic nuclei NGC 612, 4C 73.08 and 3C 452, exploiting archival data from
NuSTAR, XMM-Newton, Swift and INTEGRAL. These Compton-thick candidates are the
most absorbed sources among the hard X-ray selected radio galaxies studied in
Panessa et al. (2016). We find an X-ray absorbing column density in every case
below $1.5 \times 10^{24}$ cm$^{-2}$, and no evidence for a strong reflection
continuum or iron K $\alpha$ line. Therefore, none of these sources is properly
Compton-thick. We review other Compton-thick radio galaxies reported in the
literature, arguing that we currently lack strong evidences for heavily
absorbed radio-loud AGNs.
