On Friday, a number of jihadist-linked Twitter accounts began tweeting links to khilafalive.info, a Web site which claims to be an "official website for the supporters of the Islamic State Caliphate." A selection of video and radio channels were hosted on the site, some playing Islamic State propaganda videos and others jihadi nasheeds (a type of Islamic vocal music). Users were able to "chat" with fellow viewers.

How do we deal with American supporters of terrorist groups like ISIS? Europe may have some surprising lessons with its kinder, gentler approach to homegrown jihadists.

The United States and its partners are focusing their military might on stopping the spread of the group known as the Islamic State in Iraq and on disrupting IS operations in Syria. Behind the scenes, however, efforts also are underway to prevent the violence from spreading back to Europe and the United States.  

A double suicide car bombing at the Bab al-Hawa border post between Syria and Turkey on Monday killed at least 16 people, including six rebels, a monitoring group said. The Syrian Observatory for Human Rights, updating an earlier toll, said 20 people were wounded as one car detonated at a checkpoint just outside the crossing and another inside the post.

Jihadists have been on the internet a long time, and they probably know how to use it better than you do. Since the early years of the world wide web, radical Islamist groups used it for a number of different jihad-y means, from recruitment and financing to propaganda and communication. But how has this changed over the past decade, and in the wake of Edward Snowden's revelations of NSA spying, what does the future hold for jihadists and the internet?

Niger's president is pushing for the creation of multinational African brigades — notably with Libya — to boost border security in lawless zones where jihadist fighters roam. Mahamadou Issoufou says Niger is "no sanctuary for terrorists" but believes many jihadist fighters have taken refuge in the south of neighboring Libya after French forces ousted al-Qaida-linked militants from a teetering Mali earlier this year.