Ireland peace broker George Mitchell warns hard border poses a threat

The man who brokered peace in Northern Ireland says a hard border must be avoided or violence is possible.George Mitchell, a former US senator, told Sky News it would be complacent to dismiss the risks posed by Brexit as scaremongering."Reason, common sense and prudence tells us that in light of the history of Northern Ireland, no steps should be taken that might make a resumption of violence more possible.