  Despite the many empirical successes of QCD, there are a number of intriguing
experimental anomalies that have been observed in heavy flavor hadroproduction,
in measurements of azimuthal correlations in deep inelastic processes, and in
measurements of spin correlations in hadronic reactions. Such phenomena point
to color coherence and multiparton correlations in the hadron wavefunctions and
physics beyond standard leading twist factorization. Two new high precision
tests of QCD and the Standard Model are discussed: classical polarized
photoabsorption sum rules, which are sensitive to anomalous couplings and
composite structure, and commensurate scale relations, which relate physical
observables to each other without scale or scheme ambiguity. The relationship
of anomalous couplings to composite structure is also discussed.
