article_snippet: As countries around the world have realized the dangers of the IS... we will work with others to stop the IS at the IS source.
article_snippet: We cracked some cases involving people who had just returned after directly participating in fighting," Zhang revealed.
article_snippet: Such cases sometimes involve 'lone wolves' and other times involve groups."
article_snippet: To solve such cases... to ensure people's safety, We sometimes have to keep things confidential and take We time.