Some Muslim converts protest violence against the government outside a New York mosque . Inside the mosque , an Imam preaches against violence . Authorities say the preacher walks ` ` right up to the line '' of free speech protection . See the full investigation on ` ` ' 360 '' tonight , ' ET .
Radical Muslim converts defend violence against the U.S. outside a New York mosque . Inside the mosque , an imam preaches against terrorism . Authorities say the language walks `` right up to the line '' of free speech protection . See the full investigation on `` AC 360 '' tonight , 10 ET .