The government has now disclosed that, in the event of No Deal, not only will food supplies from abroad be held back in favour of medical supplies, but medical supplies will be so short that ministers will instruct pharmacists to ignore GPs' prescriptions, ration supplies and replace patent with generic drugs. This will be done under 'Henry VIII' powers so that relatives of those who die as a result can't sue.
https://twitter.com/hzeffman/status/1070936000841609217
Doesn't matter, in a way, because, for this and other reasons, the House is never going to permit No Deal. Every MP remembers Jo Cox and most of them remember Spencer Perceval, the only Prime Minister ever to be assassinated.
If May's Withdrawal Agreement fails in the House, as is expected, there can't be another referendum because you can't put May's deal on the ballot and you can't put No Deal on the ballot either. (MPs will not sign their own death warrants.) So Remain is the only option.