In the real world, impractical is the same as impossible. It's easy to enable a third party to read encrypted data, simply give them the key. That is not and n

In the real world, impractical is the same as impossible. It's easy to enable a third party to read encrypted data, simply give them the key. That is not and never has been the problem. The problem is ensuring that only authorized uses occur. There is no algorithm that can determine good guys from bad guys. Keys are notoriously hard to keep secret. Any mechanism that tries to transmit them now adds a third party, and we have enough problems trying to keep things secure when they're only two parties. Storing them securely is highly improbable to occur in practice. We cannot even store simple data securely. The OMB breach showed that employees were unwilling to apply basic security practices to protect data about themselves... why would they securely store data when they won't be hurt? Splitting them helps a little, but it doesn't solve the fundamental problem. And this ignores the fundamental problem that groups like terrorists can simply use a different algorithm. When somebody says please think of the terrorist children, they assume that somehow they will use the bad encryption everyone else is stuck with. If someone is willing to violate one law, they will be willing to violate another.