A team of engineers from Newcastle University could be advising rail industry chiefs on the best design approach for bomb-proof trains.
Conor O'Neill, who led the research has admitted that replacing the current trains 'isn't an option'.
He said: "What we've shown is that companies could make some relatively cost-effective and simple modifications that would significantly improve the outcome of an attack."
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Shadow chancellor John McDonnell has called on Labour to unite amid an escalation in divisions that threaten to "destroy" the party.