Yesterday, at George Washington University, an energetic panel of government officials, scholars and policy advocates from business and civil society discussed the role of tech companies in an age of international terrorism.  There is more to this thorny issue, but the panel began with a good outline of the issues at stake. The panel met at a sad time when the world is mourning the loss of life from the attacks in Brussels.  Coming after attacks in Paris, San Bernardino and Istanbul, we are clearly at a critical junction in the struggle against violent extremism.  And that made today’s topic tragically timely and relevant. So what are the responsibilities of tech companies in an age of international terrorism?  I’d say that they have three: