They can’t stay on the fence. EU leaders need to stem the migrant crisis that’s cascading out of control. Hungarian authorities are now erecting a fence along the Croatian border, complementing one already cutting off Serbia. Croatia, meanwhile, has blocked all but one border crossing with Serbia after 13,000 refugees poured in when Hungary closed its doors. The EU’s freedom of movement is increasingly being tested, and refugees continue to flee the Middle East in droves — raising animosity across countries and continents with little hope for a solution in sight.