Additional Stringy Sources for Electric Dipole Moments

We show that string models with low energy supersymmetry which accommodate the fermion mass hierarchy generally give nonuniversal soft trilinear couplings ($A$ terms). In conjunction with the apparently large Cabibbo-Kobayashi-Maskawa (CKM) phase, this results in large fermion electric dipole moments (EDMs) even in the absence of $CP$ violating phases in the supersymmetry breaking auxiliary fields and the $\mu$ term. Nonobservation of the EDMs therefore implies that strings select special flavor and/or supersymmetry breaking patterns.