Britain's smoking ban, and bumper sea beasts

In this edition of The Naked Scientists: MPs vote in favour of stricter smoking and vaping controls; but do we actually need this and will it work? Also, the remains of what's thought to be the largest reptile to have roamed our "Severn" seas are uncovered on the beach in Somerset. And a tribute to the BA pilot who saved his air passengers from a volcanic ash cloud, but why are volcanoes so disastrous for jet engines? Like this podcast? Please help us by supporting the Naked Scientists