"The policeman who ran into them was not only drunk, but had gone through a red light and had no siren on.
VOA: standard.2010.05.19
A red light means get into position. Yellow light means ready.
VOA: standard.2009.09.10
They appear red. Light waves from an object speeding toward you will have shorter wavelengths.
VOA: special.2009.04.29
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