Note-destruction has led to many evils: perjury in curing the document set, note affidavits being taken out on the wrong house and foreclosure attempts on people who don't even hold mortgages (seriously).
Mortgage-payers are asking themselves: does the bank hold the note on my mortgage? Why am I paying the bank if they don't hold the note - I won't gain clear title?
The only way to resolve ownership is to go through the courts. And - of course - make sure no-one bails the fracking banks out this time.
The proper solution is to declare the mortgage invalid but the debt to be an unsecured claim that can only be enforced upon production of the original note.