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I think it should send warning bells ringing in many areas but, it generally ends with us desensitized.

I see two possibilities: it sends warning bells to already desensitized receptors, or the attention span has dropped so low that we shift our focus before we act on them.

or the attention span has dropped so low that we shift our focus before we act on them.

I would say that this is a pretty good call. 24 our news cycles repeated every 30 minutes is an indicator of just how inattentive we are.