Belgian and French officials are investigating whether Abdelhamid Abaaoud, a Belgian Islamic State member, was involved in Friday’s attacks in Paris. Meanwhile, French police on Monday conducted more than 150 raids, searching the homes of suspected radical Islamists. Photo: AP. Don’t miss a WSJ video, subscribe here: http://bit.ly/14Q81Xy More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com Visit the WSJ Video Center: https://wsj.com/video On Facebook: / videos On Twitter: / wsj On Snapchat: https://on.wsj.com/2ratjSM