  We discuss how to experimentally study the electroweak symmetry breaking
(EWSB) sector by observing $WW \to WW$ interactions in the TeV region. We
discuss some general features of the event structure in the signal and the
background events. Various techniques to enhance the signal-to-background ratio
are also presented. We show how to detect longitudinal W-bosons either in the
central rapidity region of the detector or in the beam pipe direction. Finally,
we globally classify the sensitivities of the Large Hadron Collider and the
Linear Colliders to probing the next-to-leading order bosonic operators of the
electroweak chiral lagrangian used to parametrize models of strongly coupled
EWSB sector.
