Speed, Social Media Shape Counterterrorism Probes

In the aftermath of the Paris attacks, officials carried out waves of raids and arrests to try to break up terror cells across Europe. As in any criminal investigation, the crime scene provides key evidence that leads investigators to suspects still at large. But as former counterterrorism officials told VOA, investigations of terror attacks differ in two key aspects: They're accelerated by the possibility of another attack, and a wealth of information about the suspects spreads...

© La Voix de l'Amérique - mardi 1^er décembre 2015