Attacks ‘raise immediate terror concerns,’ for other cities in Europe and US

Former U.S. Secretary of Homeland Security Michael Chertoff says it is too early to know exactly what was happening in Paris.

Social media posts from purported ISIS supporters could indicate that “there was a group waiting for this, but it could be a group watching,” Chertoff said in an interview with MSNBC Friday night. “I don’t think we can say this proves anything, but again it supports the idea that it’s terrorism,” Chertoff said.

John Cohen, a former Homeland Security Department counterterrorism coordinator, say the presence of multiple attack scenes at the same time suggested a coordinated effort to “send a message” and raises immediate terror concerns, including for other cities in Europe and potentially the United States as well. He said both Al Qaida and ISIS have relied on the strategy of coordinated attacks in the past.