Pray Always

I've noticed a trend which is disturbing, at least to me. Every time we hear of a horrific tragedy, especially one involving multiple deaths, social media is covered with pleas for people to pray. Pray for Boston, Pray for Paris, Pray for Belgium, Pray for Orlando...  Don't get me wrong, prayer is a good thing, but why should we need to be reminded to pray?  Does prayer only work in the aftermath of such tragedies? Why can't we follow the commandment to pray always or the commandment to pray without ceasing? Shouldn't prayer be a part of our daily lives?  Shouldn't we be praying for our country, our leaders, our friends, our spouses, our children, and even our enemies? Why should we only turn to God when something goes wrong? If He can provide comfort in such perilous times, can't He provide that same peace and comfort always?