The Prophet of the Lord Jesus Christ, Pres. Thomas S. Monson. spoke in Oct Conference in 2009 that we should beware of anger. Pres. Monson said he was watching the news and was impressed by the spirit that the message of many of the stories was designed to incite anger in the people. He then warned us to "school our feelings" and to beware of anger. Pres. Monson reminded us of several scriptures that warn us of anger:
Psalm 37:8 Cease from anger, and forsake wrath.
3 Nephi 11:28-30 “There shall be no disputations among you. … For verily, verily I say unto you, he that hath the spirit of contention is not of me, but is of the devil, who is the father of contention, and he stirreth up the hearts of men to contend with anger, one with another. Behold, this is not my doctrine, to stir up the hearts of men with anger, one against another; but this is my doctrine, that such things should be done away.”
Pres. Monson added his own prophetic words saying, "Anger, Satan’s tool, is destructive in so many ways. . . To be angry is to yield to the influence of Satan. No one can make us angry. It is our choice. If we desire to have a proper spirit with us at all times, we must choose to refrain from becoming angry. I testify that such is possible."