Congress used which law to curb opposition to government?

I believe the Espionage Act may be the answer. The act was passed during the United States' affiliation with WWI. It banned any disloyal language toward the U.S. government. The act has been amended several times however, due to the fact that it violated some constitutional rights.

It allowed for things to be produced much more quickly and efficiently 

Ibelieve the answer is  battle of saratoga but i could be wrong