The laws of the United States sometimes claim "long arms",1 so that the United States can prosecute people for things done outside the United States.
In criminal matters, the separate states in the U.S.A. are in many ways more powerful than the federal government. Can they ever prosecute cases against defendant because of the defendants' conduct outside of the particular state?
1. Here, I'm specifically referring to extraterritorial criminal jurisdiction. Long-arm jurisdiction can also refer more generally to courts' personal jurisdiction over people for conduct ostensibly done elsewhere.