  We present the first results from the Complete Optical and Radio Absorption
Line System (CORALS) survey for Damped Lyman Alpha (DLA) systems based on a
radio-selected sample of quasars. We find that the number density and neutral
gas content of CORALS DLAs is in good agreement with previous surveys. These
results indicate that dust obscuration has probably not been responsible for a
significant selection bias in the past, although the statistics still permit an
underestimate of n(z) and Omega_DLA by up to a factor of about 2.
