  If CP violation in the decays of neutral kaons is due to phases in the weak
couplings of quarks, as encoded in the Cabibbo-Kobayashi-Maskawa (CKM) matrix,
there are many other experimental consequences. Notable among these are
CP-violating rate asymmetries and triangle relations among decay rates in $B$
meson decays, while charmed particle decays should not be a good place to see
CP-violating effects. In the context of the CKM and other models of CP
violation, we discuss phenomena such as electric dipole moments, the baryon
asymmetry of the Universe, and the strong CP problem, and speculate on a common
origin for CP-violating phenomena.
