I'll bite as well, and raise it to two:
My physician is Muslim. (Whether my continued health is a "contribution" to this country is, of course, debateable amongst my opponents here...)
Meroueh, M.; Grohar, P. J.; Qiu, J.; SantaLucia, J., Jr.; Scaringe, S. A.; Chow, C. S. Unique Structural and Stabilizing Roles for the Individual Pseudouridine Residues in the 1920 Region of Escherichia coli 23S rRNA, Nucleic Acids Res. 2000, 28, 2075.
Chemist_Geek, what do you think would be the proper course of action for the USA to take in response to 9/11?