  We examine the possibility that the SU(2) gauge group of the standard model
appears as the dual "magnetic" gauge group of a supersymmetric gauge theory,
thus the W and Z (and through mixing, the photon) are composite (or partially
composite) gauge bosons. Fully composite gauge bosons are expected to interact
strongly at the duality scale, and a large running is needed to match the
electroweak gauge couplings. Alternatively one can mix the composite "magnetic"
gauge bosons with some elementary ones to obtain realistic models. In the
simplest and most compelling example the Higgs and top are composite, the W and
Z partially composite and the light fermions elementary. The effective theory
is an NMSSM-type model where the singlet is a component of the composite meson.
There is no little hierarchy problem and the Higgs mass can be as large as 400
GeV. This "fat Higgs"-like model can be considered as an explicit 4D
implementation of RS-type models with gauge fields in the bulk.
