Extremism

The organizing body, Nahdlatul Ulama, is the largest Islamic organization in the world.
The number has declined to about 200 a month in the past year.
A radicalization expert explains what countries can do to stem the violence.
The terrorists' efforts to go viral are stymied, a new study finds.
The Southern Poverty Law Center says Donald Trump "electrified the radical right."
Critics say Cameron's decision to single out Muslim women in his op-ed and to cite extremism as justification for English classes could further ostracize Muslims in the U.K.