List of all emergency communications issues. APCO stands for the 2019 membership year - with big prizes for the 911 Professionals. The Colorado chapter of NENA/APCO is committed to providing complete public safety communications expertise, professional development, technical. Nena Cook is a public made safer and more secure through universally-available state-of-the-art 9-1-1 systems and trained 9-1-1 professionals. The film tells the story of sixteen-year-old Nena, who is confronted with the suicide attempt of her handicapped father.