From Commentary Magazine:
It is a demonstration of the terrifying fact that there will always be holes in the net and, despite the best efforts of law enforcement, the threat to the homeland cannot be entirely abrogated without neutralizing the source of terrorism overseas.
Abdulazeez is hardly the first American to try to execute attacks on soft targets in the United States, but he was among the more successful. Since the start of 2015, there have been a substantial number of terror plots that were halted in the planning stages and aspiring terrorist actors charged with conspiring to stage attacks.