How 'smart' are smart motorways?

Campaigners carried cardboard coffins to Parliament Square on 1 November, demanding a ban on all-lane running motorways.On the Sky News Daily podcast with Dermot Murnaghan, we hear from Claire Mercer, whose husband died on a stretch of the M1 without a hard shoulder, plus investigative journalist Susie Coen - who went undercover in a control centre - and AA president Edmund King, who opposes smart motorways.Daily podcast team:Senior podcast producer - Annie JoycePodcast producer – Rosie Gillott Interviews producer – Tatiana AldersonArchive - Simon WindsorArchive – Nelly Stefanova Archive – Rob FellowesMusic - Steven Wheeler