Why would three American teenage girls from Denver try to join ISIS?
We asked Mubin Shaikh, a former jihadist, to offer context – and he says the answer is a mix of a search for identity, adventure and a false sense of reality.
"You reinforce in yourself this idea that you can participate in something far greater than your mundane existence at home," Shaikh told CNN's Michaela Pereira.
Shaikh now works for Canada's intelligence service but says he can offer perspective on these teens because he once was a young Muslim who came to the edge of extremism.
He was brought back by a support network of parents, friends and religious elders.
"It will take a holistic effort and it can't be done by coercive forces," to reach vulnerable people who may consider extremism, Shaikh said.
In this Denver case, two families called the FBI and the teens were intercepted in Germany.
"It's better that your kid get arrested or at least talked to than be used as a sex slave," Shaikh said.
"A lot of them are living in a fantasy world and just don't understand what awaits them on the other side."
CNN's Chris Cuomo recently traveled to Italy to trace his roots.
He thought he knew his family history until his journey led him to participate in a pole-climbing competition and more.
See a photo gallery from his trip.
Don't miss the two-hour ROOTS special, Tuesday, October 21 at 9 p.m. ET/PT. CNN.com/Roots
Bill Gates says one way to prevent the spread of Ebola and other diseases in Africa is to make basic health interventions more readily available.
In an exclusive interview with Ozy.com, Gates told CEO Carlos Watson: "Most people in Africa are born and die without ever meeting what we’d think of as a full-blown doctor.”
Watch the clip above as Watson spoke about this and other takeaways from the interview on "New Day" Friday.
See the full interview from Ozy
As fears of an Ebola outbreak in the U.S. increase, big cities are getting creative in how they're preparing for the worst.
Dr. Ross Wilson, the Chief Medical Officer for the NYC Health and Hospitals Corporation, tells CNN's Michaela Pereira they are sending actors to public hospitals in the Big Apple to fake symptoms of Ebola in order to test how well the staff identifies and isolates possible cases.
Dr. Wilson describes the process:
"We train simulated patients and then we take a standard script, they arrive at an emergency department and staff are unaware that these patients are not real patients, and this goes through for about 50 to 60 minutes until the patient is isolated or we end the scenario."
So what should the hospital staff be looking for and what is the proper response?
Two simple things, Dr. Wilson says.
"Someone comes in with a headache, symptoms of vomiting, diarrhea, and a fever, immediately get a travel history."
If the person has been to the three countries in Western Africa – Sierra Leone, Guinea, or Liberia, they are immediately isolated.
And how is New York City doing?
Dr. Wilson is optimistic.
"We’ve been gratified that most things have gone right," he says.
"But there are a lot of human beings in this process and they all have to come together in the same way every time, with every patient."
Let us know what you think about this plan in our comments