I also have a list of addresses of which I would like to spend the balance...
Maintaining your own secrets is your business. blockchain.info cannot recover forgotten wallets or lost credentials, that is why you must back up your wallet data. This also solves the problem of people trying to social engineer their way into other's accounts.
https://blockchain.info/wallet/backupsSecurity
Our security policy is to hold as little data as possible that in the event of a security breach could affect our users. Using our My Wallet service we do not hold or intercept any passwords or personally identifying information; wallet data is only stored in encrypted form.