I think the reasons are solid. Zakaria is a noted commentator, muslim and scholar. He reacted strongly on his CNN program to Glenn Beck's statement. Glenn Beck himself felt the need to respond to Zakaria on his own program. And it also was mentioned in a number of partisan but prominent internet sources like the Huffington post. Adding to that it is very relevant and important information. Beck frequently makes statements regarding religion and terrorism, and questions about his attitude toward muslims are often asked. This being part of the article on Beck, gives a concrete quote from him regarding Islam and Terrorism. Frankly, why shouldn't it be included Cptnono?