The plot of the hit Fox drama “24” may make for exciting television, but Muslim groups fear their representation as terrorists does more than entertain - it vilifies an entire religious group. “I think that TV has quite an effect on how people think,” said Nadeem Mazen, past president of the MIT Muslim Association. “So much of what we hear on Muslims is hearsay - an expert opinion by people with a personal agenda and not necessarily motivated by truth. And then a show like this comes along that perpetuates the ‘them’ factor.” The plot of the sixth season of...