  We show that in supersymmetric extensions of the Standard Model gluino box
diagrams can yield a large Delta(I)=3/2 contribution to s->d+q(bar)+q FCNC
processes, which may induce a sizable CP-violating contribution to the I=2
isospin amplitude in K->pi+pi decays. This contribution only requires moderate
mass splitting between the right-handed up- and down-squarks, and persists for
squark masses of order 1 TeV. Taking into account current bounds on
Im(delta_{sd}^{LL}) from K-K(bar) mixing, the resulting contribution to
epsilon'/epsilon could be an order of magnitude larger than the measured value.
