Last year 300, 000 people attended the free event which begins at noon and ends at 2200 BST on both days.

BBC: NEWS | UK | England | London | Rowers test mettle on the Thames

These days, both the public and private ends of this arrangement are fraying badly, and gaps are opening up.

FORBES: Is Fire Protection a Right or a Privilege?

The last segment we did with you a couple of days ago elicited a lot of letters from people looking for advice from both ends of the investing spectrum, those just starting to build for their future and those who are retired or want to be retired soon.

NPR: Your Personal Finance Questions Answered