OT, but relevant:

AP: US Muslims prep for Islamic holiday — around 9/11

NEW YORK – The lunar calendar that Muslims follow for religious holidays is creating a potential for misunderstandings or worse in a year when American Muslims are already confronting a spike in assaults on their faith and protests against new mosques.

Eid al-Fitr, a joyous holiday marking the end of the holy month of Ramadan, this year falls around Sept. 11. Muslim leaders fear that their gatherings for prayer and festivities could be misinterpreted by those unfamiliar with Islam as a celebration of the 2001 terrorist strikes.

The Muslim Public Affairs Council, an advocacy group based in Los Angeles, is contacting law enforcement and the Justice Department civil rights division to alert them to the overlap.