  A study of the possible vacuum phases in a strongly interacting two flavor
light quark system is presented. Four possible phases are found with some of
their properties presented. The possible existence of localized U(1) EM
symmetry breaking phases inside a nucleon and excited hadrons is investigated
by showing the potential of solving three selected current ``puzzles'' in
experimental obervations if such a possibility is taken into account. Base on
these results, the potential of producing these phases in heavy ion collisions
is speculated.
