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The Conversation USA

How does IS claim responsibility for a terrorist attack?

  • Written by Monica Duffy Toft, Professor of International Politics, Tufts University
imageAn Iraqi soldier inspects a train tunnel adorned with an Islamic State group flag in Mosul, Iraq. AP Photo/Khalid Mohammed

News outlets have reported that the Islamic State claimed responsibility for a terrorist attack on a London Bridge June 3.

But how do they know? And how reliable are such claims?

We asked Monica Duffy Toft, an international...

Read more: How does IS claim responsibility for a terrorist attack?

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