  We have shown that the interstellar media which surround the progenitors of
SGRs and AXPs were unusually dense compared to the environments around most
young radio pulsars. This environmental correlation argues strongly against the
current magnetar model for SGRs and AXPs. We suggest instead that they are
neutron stars with sub-critical magnetic fields and are spun down rapidly by
``propeller'' torques from fossil disks formed from the fallback of supernova
ejecta. We show that this hypothesis is consistent with the observed properties
of these enigmatic objects, and we compare the propeller and magnetar models
for SGR and AXPs.
