This transcript has been automatically generated and may not be 100% accurate.  world leaders are grappling with how to fight back against extremist groups like Islamic State and radicalized young people here's a scenario that raising fears in Western countries fighters to travel to and from Syria and Iraq ... now he's alienated Muslim used by the thousands are traveling to Syria ... he trained and indoctrinated by ISIS ... returning home if they survive ... as one analyst ... what can be done to cover ... their least four schools of thought ... of which have their critics wanna work on weak losses ... the State Department spokeswoman recently said insufficient schooling and job opportunities in the Arab world ... are pushing people to join extremist groups by their lack of opportunity for job the stop ... light critics say there's no correlation between poverty and Islamic extremism ... and some of the most notorious terrorists have been educated and far from four to humiliate ISIS on the battlefield ... take back territory the group has claimed and their law reform fighters will disappear ... here are the shortest issues involved which countries are willing and able to send troops and the like ICE's on lap ... three ... cracking down on would-be foreign fighters before they leave to join the battlefield ... U K the governor's under scrutiny after three chainsaws and coral slid of the country ... this happened the snow we got the gum adopted measures aimed at curbing travel to Syria which they're calling for tougher enforcement procedures French authorities say at least one of the Charlie Hebdo attack received weapons training from al Qaeda offshoot in Yemen ... don't French travel bans are becoming a key plank in government offers to stem the flow Western Natural's to Syria and other conflicts ... the French government on Monday announcing the sauce didn't know it was boring six nationals from leaving the country with an ecommerce preparing travel bans for additional forty individuals ... often ... with the latest described Islam ... as religion race I wish more Muslim this ... site that ... more often ... and when ... Australia's Prime Minister Tony Abbott is calling for new measures to crack down on Muslim extremists within his country in downtown Sydney in December a man claiming to represent Islamic State ... took several hostages in a cafe ... the gunman was killed ... and two his hostages also died ... the government is crafting laws to make it possible to revoke the citizenship of people with dual nationality is to travel abroad to join radical groups the fourth approach ... of theological battle against extremists and ... Saudi Arabia ahead of Sunni Islam's most esteemed warning Center is calling for sweeping changes ... in what is taught to young Muslims in schools and universities ... is based to seven hundred Muslim clerics shake out at all-time said ... terrorist organizations are using ... dropped interpretations of the Koran ... in the life of the Prophet Mohammad ... justified by with attacks on Muslims and non Muslims alike to moderate the lotions are successful in destroying the underpinnings of ISIS's belief system to improve them and really is
More countries are trying to crack down on citizens traveling to Syria to join militant groups. How are they doing it? WSJ’s Jason Bellini has #TheShortAnswer.