Teaching 20411C Day 4 dpapkinApril 10, 2014 David Papkin Category No Comments Covered NAP, NPS, DFS and FILE SCREENING david mark papkin, David Papkin, davidpapkin ← Teaching 20411C Day3 Teaching 20411C Day 5 → Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.