Signed, but not signed...

Don't know what to make of this -- as it reads, the Shrub signed the law but with certain caveats that he can ignore McCain's legislation regarding torture if he determines it "necessary". It's common to have a statement associated with the signing of a bill, so I have no idea what this will mean in practice, but I'm sure it's part of the plan to "restore presidential power". Still looking for more info on this.