Sediton by the MSM Q, Use the Smith ACT to lock up the MSM,Especially CNN In 1940, the Alien Registration Act, or "Smith Act", was passed, which made it a federal crime to advocate or to teach the desirability of overthrowing the United States Government, or to be a member of any organization which does the same. It was often used against Communist Party organizations. This Act was invoked in three major cases, one of which against the Socialist Worker's Party in Minneapolis in 1941, resulting in 23 convictions, and again in what became known as the Great Sedition Trial of 1944 in which a number of pro-Nazi figures were indicted but released when the prosecution ended in a mistrial. Also, a series of trials of 140 leaders of the Communist Party USA also relied upon the terms of the "Smith Act"—beginning in 1949—and lasting until 1957. Although the U.S. Supreme Court upheld the convictions of 11 CPUSA leaders in 1951 in Dennis v. United States, that same Court reversed itself in 1957 in the case of Yates v. United States, by ruling that teaching an ideal, no matter how harmful it may seem, does not equal advocating or planning its implementation. Although unused since at least 1961, the "Smith Act" remains a Federal law.