You may have noticed how often "sequestration" has been recently referred to as "so-called sequestration." Why? This is an old trick of the left and has been in use since the rise of the labor unions in the 1930's. The modifier "so-called" is used to trivialize anything you are opposed to, It's meant to call into question the truthfulness of a fact or concept. When you hear it used it is also an indicator of laziness or the user. Remember, if it looks like a duck, walks like a duck and quacks like a duck, it is a "so-called duck."