What is your view on the whole Derivatives issue? Because they seem to be very problematic as it seems that a small part of it is really used for useful busines

What is your view on the whole Derivatives issue? Because they seem to be very problematic as it seems that a small part of it is really used for useful business objectives (like hedging) but the vast majority of them is used as plain, bubble generating, gambling in the markets (as the subprime chaos in 2008). Will LTSE address this issue in any way?