Here is a quick shower theory, clocks and mirrors.
9/11 = 31 or 13
London bombings, 7/7 = 11
Barak, also spelled Baraq, is a given name of Semitic origin. As a Hebrew name, from the root B-R-Q (Hebrew: ื-ืจ-ืงโ; Arabic: โโ), it means "lightning"