From Jonathan Bernstein:
We can’t specifically connect individual actions to the overall political atmosphere, just as we can’t specifically conclude that a specific hurricane is the consequence of climate change. Perhaps the bigots in Kentucky and Pittsburgh would have acted anyway; perhaps in a different political climate, the attempted bomber would have found other targets.
What we can do, however, is face the climate honestly. And the truth is that people who watch the news within the Republican-aligned media, and listen to Republican politicians including the president of the United States, are being fed a nonstop diet of crazy conspiracy theories and phony scare stories.