Muslims are congenital liars.
From the Islamic Bukari text: V4B52N268 "Allah's Apostle said, 'War is deceit.'"
and from the Quran itself: 4:142 "Surely the hypocrites strive to deceive Allah. He shall retaliate by deceiving them."
If their lips are moving.. you can be assured it is a lie... Allah made them do it.