The New Patriotism Series is a project embarked upon by the Orion Society on the Thoughts on America Initiative to present the events of September 11 attacks and the emerging "new world order" through the eyes of several writers including Wendell Berry, Barry Lopez, Terry Tempest Williams, Richard Nelson, and David James Duncan.
There are more than 5 writers involved in The New Patriotism Series.
This statement is definitely incorrect because the passage states the project includes several writers and then uses the word "including" before listing 5 authors. The word "including" hints that there are more authors than what is listed.