  We present a geometric approach to the Baum-Connes conjecture with
coefficients for Gromov monster groups via a theorem of Khoskham and Skandalis.
Secondly, we use recent results concerning the a-T-menability at infinity of
large girth expanders to exhibit a family of coefficients for a Gromov monster
group for which the Baum-Connes conjecture is an isomorphism.
