possible plagiarism

[KeenanE at doaks.org]

I wish I could help you, because I consider this kind of
cyper-plagiarism to be a major threat to the standards of intellectual
honesty we try to inculcate.  I would recommend that you delay returning
your paper until you have satisfied yourself that your suspicions are
unfounded (unlikely), and tell the student that you are doing so because
you have reason to believe ...etc.  At the very least, a brief homily
can have only salubrious effect.

Good luck!