I've been noticing sirens lately. More than usual.
They tend to be mainly police sirens, with occasional ambulances and fire trucks thrown into the mix. All this (mainly) citizen information gathering is making me more aware of just what those sirens might've been for. And how close they might be to home.
Such a contrast to the suburban town where I spend my days as a wage slave. The police spend noontime making sure that no one obstructs the crosswalks in the center of town.