According to an estimation by UK authorities, about 500 Britons have gone to Syria and Iraq to fight for the terrorist group ISIS, and there are fears that more Britons might be interested in leaving the UK for the two Countries in-which ISIS is unleashing its deadly force for the birth of an Islamic state and so, the government have raised threat level to "severe", meaning a strike on UK by the terrorist group was "highly likely". Video source: http://www.bajaomoniyi.tv/2014/08/united-kingdom-raises-terror-threat-to.html

terror has become worldwide problem

all sane minds shld say no to terror