  The anapole moment is a parity-odd and time-reversal-even electromagnetic
moment. Although it was conjectured shortly after the discovery of parity
nonconservation, its existence has not been confirmed until recently in heavy
nuclear systems, which are known to be the suitable laboratories because of the
many-body enhancement. By carefully identifying the nuclear-spin-dependent
atomic parity nonconserving effect, the first clear evidence was found in
cesium. In this talk, I will discuss how nuclear anapole moments are used to
constrain the parity-nonconserving nuclear force, a still less well-known
channel among weak interactions.
