(Oregon City, OR)  --  A teaching assistant who worked with special-needs students is facing charges related to child pornography.  Authorities say 39-year-old James McGlothlin of Portland, who was an adaptive physical-education instructional assistant for the Oregon City School District, has been charged with one count of producing child pornography.  Officials say McGlothlin's computers contained explicit images and essays in which he allegedly discusses drugging and sexually abusing young children.  He's been suspended by the Oregon City School District.