2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41000I outline some of the challenging issues that could arise in attempting to fully delineate various possible Higgs sectors, with focus on the minimal supersymmetric model, a general two-Higgs-doublet model, and extensions thereof.12 pages, 5 figures, submitted to the Proceedings of ``The Future of Particle Physics'', Snowmass 2001, P1 group. Revised to include additional referencesHigh Energy Physics - Phenomenologytext