Chicago buses have become a battleground for two groups promoting different definitions of jihad.

This past weekend, the Council on American-Islamic Relations launched "MyJihad," a national ad campaign featuring individuals' testimonies about what the pillar of Islam means to them.

But on Monday, the American Freedom Defense Initiative, or AFDI, asked the CTA to accept another batch of ads, featuring mock testimonies from high-profile Muslim extremists, including Osama bin Laden.

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