The latest statistics show that pubs in London are still closing at an alarming rate.
On average, two a week are having to call last orders for a final time.
Many are being turned into supermarkets and fast food chains - and campaigners say they need help.
Piers Hopkirk has been to three pubs which each have a very different story:
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Paramedics were on standby outside the police cordon as armed officers stood by the property.
A team of researchers has taken samples from the ten busiest London Underground lines to work out which are the dirtiest.
The action comes on top of an emergency timetable which has seen hundreds of trains a day being axed.