Who's Scared of the Word 'Christmas'?

I love anything Dinesh D'souzh writes and I am glad the he is addressing this issue, why is it that people are afraid to say "Merry Christmas" during Christmas season and we just go along saying "Happy Holiday"? I am talking about Christians saying happy holiday to each-other! Why would corporations like Nordstrom, K-Mart, Best Buy and Home Depot ban the word Christmas?   Well read this if interested.  Click here.