There are people who are very clever in what they say, especially political and religious leaders. They choose words very carefully. They make statements in a way so that if people oppose the words they can get back to the original words spoken and back it up itself.

Example-

* Religious Leader: There is Almost NO evidence against Evolution.

Critic: There is many evidence, how come there is none.

Religious Leader: I said, "Almost No"

I remember a word like "come-back" statement but not sure.