I move so fast you’ll barely see me, try to slow me down I get red with anger. It seems today for everything I am key, but know I’m always a lurking danger. What am I?

Riddle: I move so fast you’ll barely see me, try to slow me down I get red with anger. It seems today for everything I am key, but know I’m always a lurking danger. What am I?

Show answer

Electricity.