Tom, a supervisor at Heintz Inc., is talking with his employees about their current interest in creating a union. Tom tells the employees that he does not "think that unions are worth paying dues for" and will not, in Tom's opinion, "make this a better organization". Tom has the protection to make these statements due to:

The National Industrial Recovery Act $($NIRA$)$

The Landrum $-$ Griffin Act

The Norris LaGuardia Act

Taft $-$ Hartley Act

The Wagner Act