Hanging around...

Why is it on TV news reports they always flit over to some dumb sap (who has drawn the short straw) and is standing outside either No. 10 or New Scotland Yard. They never actually interview anyone at the venue it just seems to be some pointless exercise to indicate the story refers to either politics or law enforcement.

Also in the case of No. 10 you always see someone exit (usually a policeman) through the door. EVERY SINGLE TIME!!!

Rant over.