I really enjoyed this series and was disappointed to find that there's not a 4th books. Write faster!There was great action and I liked how each mission took place in a different location, it really gives you the full scope of the terrorist threat. It's rather scary to know how easy it is for terrorists to get into this country and utterly amazing that we haven't had another attack.Since these books are a few years old, some of the technology reads as a bit dated - cell phones and Internet capabilities specifically, but that doesn't detract from the timeliness of the issues.There is an ungodly amount of detail about weapons, ammunition, boats, trucks, and other vehicles. It did get a bit tiring in spots, but also gave the stories authenticity and helped the reader visualize what it takes to load up with all of that equipment. It's just these details that had me recommend these books to my son and brother, they'll LOVE them!