  The lack of evidence for new physics beyond the standard model at the LHC
points to a paucity of new particles near the weak scale. This suggests that
the weak scale is tuned and that supersymmetry, if present at all, is realized
at higher energies. The measured Higgs mass constrains the scalar sparticles to
be below 10^5 TeV, while gauge coupling unification favors Higgsinos below 100
TeV. Nevertheless, in many models gaugino masses are suppressed and remain
within reach of the LHC. Tuning the weak scale and the renormalization group
evolution of the scalar masses constrain Split model building. Due to the small
gaugino masses, either the squarks or the up-higgs often run tachyonic; in the
latter case, successful electroweak breaking requires heavy higgsinos near the
scalar sparticles. We discuss the consequences of tuning the weak scale and the
phenomenology of several models of Split supersymmetry including anomaly
mediation, U(1)_(B-L) mediation, and Split gauge mediation.
