FDR said that "We have nothing to fear but fear itself". There are two variations which can well apply to current events.
Concerning the war against terrorism , we have nothing to fear but the extremism of religions. The posturing taken in the name of God or Allah promises to guarantee us a long costly war with no end in sight.
The rhetoric being spewed out by the GOP presidential wannabees makes me shudder. One cannot help but feel that we have nothing to fear but the possibility that a Trump or Carson could set foot in the White House as a resident. Concerning Trump, I wonder if he is a fan of Benito Mussolini?
In the end, if one is to maintain any degree of sanity, he has no choice but to embrace FDR's admonition. We have nothing to fear but fear itself. To do otherwise only encourages the extremists.