Pro-ISIS Telegram Channels Publish Posters Celebrating Manhattan Subway Attack, Reacting To Trump’s Jerusalem Declaration, Threatening New York, Washington DC, Rome

In recent days, several pro-Islamic State (ISIS) Telegram channels have shared posters celebrating the December 11, 2017 failed suicide attack in a Manhattan subway corridor as well as expressing threats to New York City, Washington D.C., Rome, Paris, and other places, threatenin…