On The Posner Show, Sarah talks to Linda about her recent debate with Pamela Geller over anti-Muslim subway ads in New York. They also discuss the Senate Judiciary Committee's hearing on hate crimes, which Linda attended. Is the US government doing enough to combat domestic extremism? Sarah asks about the American media coverage of protests against an offensive YouTube video in various Muslim countries. Linda criticizes Romney's recent comments about Palestinians, but also criticizes Obama for never visiting a mosque. Plus: Can Twitter be used to fight Islamophobia?