What we saw today was a rel­a­tively small-​​scale set of explo­sions,” says Stephen Flynn, co-​​director of the George J. Kostas Research Insti­tute for Home­land Secu­rity at North­eastern Uni­ver­sity, in Boston.

The chal­lenge with these smaller-​​scale attacks is that they are much harder to detect in the early stages – pre­cisely because they don’t require much sophis­ti­ca­tion, plan­ning, or lead­er­ship, funding, or financing,” he adds.

Read the article at The Christian Science Monitor →