Should banks be held liable for high risk investments that led to the subprime meltdown?

Abu Dhabi Commercial Bank is suing US banks and ratings agencies for giving it alleged flawed ratings for a collapsed structured investment vehicle last year.

//Abu Dhabi Commercial Bank sued Morgan Stanley, Bank of New York Mellon Corp. and three securities ratings services for allegedly rating too highly a structured investment vehicle that collapsed last year. Are banks getting off lightly after taking high risk positions and putting investors funds at risk? Should bank executives be held personally responsible for the losses at their institutions? Have your say ......