Authorities believe the terror attack on Dec. 2, 2015 in San Bernardino may have been triggered by a mandatory training session and lunch replete with holiday decorations including a Christmas tree which shooter Syed Farook was forced to attend. Emails discovered by the FBI and police reveal Farook’s wife, Pakistani native Tashfeen Malik, objected to the Christmas setting and was upset her husband had to go.Just before the attack, Farook had posed with four fellow county employees in front of a Christmas tree in the conference room. A short time later, 14 people were killed and 22 others injured when...