It isn't inconsistent, I submit, Justice Stevens, for the Congress to exercise its juris -- its responsibility under this broad grant of power to determine that there could be many ways in which the holder of an existing right may benefit the public by continuing to have that right for an additional period of time, the same reason that Congress -- same reasons that Congress had when it created the right in the first place. It's not just the right --

Can we draw the following conclusion?
Congress grants rights to improve lives


 +Yes;
 +It's impossible to say;
 +No;
It's impossible to say