In April, for instance, leading Friday prayers in front of hundreds of Muslims, Omar Inshanally warned against a "global population reduction plan" and the dumping of fluoride, Prozac and lithium in the water "to control populations," according to Aziz Gilani, a 31-year-old venture capitalist in attendance. Growing up in the shadow of 9/11, with the hate crimes and stereotypes that followed, young Muslims in particular are intensely aware of how their faith is regarded by outsiders and feel a need to self-police their own community, experts say. Forty percent of suspected foiled domestic terror plots since 9/11 were brought to the attention of authorities by Muslims, according to a February study by The Triangle Center on Terrorism and Homeland Security in North Carolina. Saleha Rehman, a dentist who works downtown, called Inshanally's sermons "very skeptical and paranoid kind of talk, 'People are spying on you and people are against you' … they are putting stuff in the water." [...] they made Rehman, a 30-year-old Houston native, so uncomfortable that she decided to change mosques and now makes the longer commute to one on Almeda. [...] Inshanally's sermons are not anti-American; indeed, it was he who helped pioneer a YouTube video channel to coincide with the 10th anniversary of 9/11, reaching out to Muslim youth vulnerable to extremism.