Context

Normally, by now, we'd have had an 'explainer', probably by Home Affairs Editor Mark Easton, instead of just pointing cameras from boats.

Some odds and ends to include: how many are granted asylum at the first go ? (A: over 50%). How many of the remainder successfully appeal when not granted asylum ? (A: over 40%).  Who makes up the majority of illegal immigrants ?  "Overstayers" who come in on regular flights and ferries. How many of them are there ? The Home Office has no idea. Just the same way it has no idea who's arrived in this country and gone into quarantine.

Some other background stuff would be useful: the value and efficiency of the Capita/Tascor contract to handle refugees/migrants, the number of migrants/refugees granted asylum in France and Germany, and perhaps a reminder of the success/failure of Theresa May's "Go Home" vans.