  In supersymmetric models with light higgsinos (which are motivated by
electroweak naturalness arguments), the direct production of higgsino pairs may
be difficult to search for at LHC due to the low visible energy release from
their decays. However, the wino pair production reaction \tw_2^\pm\tz_4\to
(W^\pm\tz_{1,2})+(W^\pm\tw_1^\mp) also occurs at substantial rates and leads to
final states including equally opposite-sign (OS) and same-sign (SS) diboson
production. We propose a novel search channel for LHC14 based on the SS diboson
plus missing E_T final state which contains only modest jet activity. Assuming
gaugino mass unification, and an integrated luminosity > 100 fb^{-1}, this
search channel provides a reach for SUSY well beyond that from usual gluino
pair production.
