At a briefing on Monday, Air Force Gen. Glen VanHerck revealed that Chinese balloon threats have gone undetected by the United States in the past, highlighting an “awareness gap” that needs to be resolved. The discovery of the balloon has raised questions about the security of the U.S. and Gen. VanHerck said that the U.S. needs to figure out how to better detect these threats in the future. The Biden administration has not yet commented on the issue.