  Berezinsky, Hnatyk and Vilenkin showed that superconducting cosmic strings
could be central engines for cosmological gamma-ray bursts and for producing
the neutrino component of ultra-high energy cosmic rays. A consequence of this
mechanism would be that a detectable cusp-triggered gravitational wave burst
should be released simultaneously with the $\gamma$-ray surge. If contemporary
measurements of both $\gamma$ and $\nu$ radiation could be made for any
particular source, then the cosmological time-delay between them might be
useful for putting unprecedently tight bounds on the neutrino mass spectrum.
Such measurements could consistently verify or rule out the model, since
strictly correlated behaviour is expected for the duration of the event and for
the time variability of the spectra.
