  By giving up the best constants, we will see that the original argument of
Spielman and Srivastava for proving the Bourgain-Tzafriri Restricted
Invertibility Theorem \cite{SS} still works - and is much simplier than the
final version. We do not intend on publishing this since it is their argument
with just a trivial modification, but we want to make it available to the
mathematics community since several people have requested it already.
