  If, as recently proposed by Farrar and Piran, Cen A is the source of cosmic
rays detected above the Greisen-Zatsepin-Kuz'min cutoff, neutrons are $\approx
140$ more probable than protons to be observed along its line of sight. This is
because the proton flux is rendered nearly isotropic by ${\cal O}(\mu$G)
intergalactic magnetic fields. With the anticipated aperture of the Southern
Auger Observatory, one may expect on the order of 2 neutron events/year above
$10^{20}$ eV in the line of sight of Cen A.
