As Heritage defense expert Steven Bucci later said, "Never tell your enemies what you will not do, Mr. President."
FEULNER: Isolating the Islamic State →
Steven Bucci, a former Pentagon official and analyst at the Heritage Foundation, said the beheading and threats have proved to be "a wake-up call" that poses risks to the Islamic State.
Islamic State employs brutality, threats in effort to entrench caliphate without interference →