Read a book on any modern security threat to the US. The threat can be a direct threat, (Taliban, Al Queda, etc.), an indirect threat, (Hezbollah, the FARC, North Korea etc.), or a potential threat, ( Iran, China etc.).
Come up with a policy recommendation to midigate the threat and use evidence from the book to support the recommendation. The recommendation may include direct or indirect military action. It may also include economic measures and/or diplomacy.
You may use other sources, but 70% of the sources must be from the book.