The problem, of course, being that anyone who believes that have a right (nay, a responsibility) to nullify law as a juror and hides the fact to be selected (as would be necessary) is in danger of being found guilty of perjury.
YOU HAVE A CIVIL OBLIGATION TO FIGHT AND DISOBEY UNJUST LAWS; AND YOUR PEERS CAN FREE YOU FROM UNJUST PROSECUTION, EVEN IF YOU COMMITTED A CRIME. USING THE JURY'S POWER OF NULLIFICATION.