National Committee to Reopen the Rosenberg Case

President Truman's Veto statement regarding the 
McCarran Internal Security Act of 1950
The idea of requiring Communist organizations to divulge information about themselves is a simple and attractive one. But it is about as practical as requiring thieves to register with the sheriff. Obviously, no such organization as the Communist Party is likely to register voluntarily. 

The basic error of this bill is that it moves in the direction of suppressing opinion and belief. This would be very dangerous course to take, not because we have sympathy for Communist opinions, because any governmental stifling of the free expression of opinion is a long step toward totalitarianism. 

We can and we will prevent espionage, sabotage, or other actions endangering our national security. But we would betray our finest traditions if we attempted, as this bill would attempt, to curb the simple expression of opinion. This we should never do, no matter how distasteful the opinion may be to the vast majority of our people. The course proposed by this bill would delight the Communists, for it would make a mockery of the Bill of Rights and of our claims to stand for freedom in the world.

[NCRRC Note: Congress passed the Act over Truman's veto by an 84 percent majority vote (House: 248 to 48 and Senate: 57 to 10).]