Muslim countries on high security alert ahead of Christmas
History of holiday attacks augmented by religious tensions over Trump's decision to move embassy to Jerusalem.
An Indonesian bomb squad policeman holds a rifle as he examines a church before Christmas mass prayer in Bandung, Indonesia, December 23, 2017 in this photo taken by Antara Foto. Picture taken December 23, 2017(photo credit: ANTARA FOTO/RAISAN AL FARISI/VIA REUTERS)ByREUTERSUpdated:
