The questions on the ads aren't subtle: Leaving Islam? Fatwa on your head? Is your family threatening you?
A conservative activist and the organizations she leads have paid several thousand dollars for the ads to run on at least 30 city buses for a month. The ads point to a website called RefugefromIslam.com, which offers information to those wishing to leave Islam, but some Muslims are calling the ads a smoke screen for an anti-Muslim agenda.
Pamela Geller, who leads an organization called Stop Islamization of America, said the ads were meant to help provide resources for Muslims who are fearful of leaving the faith.
"It's not offensive to Muslims, it's religious freedom," she said. "It's not targeted at practicing Muslims. It doesn't say 'leave,' it says 'leaving' with a question mark."