http://www.investigativeproject.org/3777/a-red-carpet-for-radicals-at-the-white-house
I guess this could explain why Obama does not like to use the term terrorism, he does not want to insult his house guests.
A year-long investigation by the Investigative Project on Terrorism (IPT) has found that scores of known radical Islamists made hundreds of visits to the Obama White House, meeting with top administration officials.
Court documents and other records have identified many of these visitors as belonging to groups serving as fronts for the Muslim Brotherhood, Hamas and other Islamic militant organizations.
I guess this could explain why Obama does not like to use the term terrorism, he does not want to insult his house guests.