2009 Fermi Symposium, Washington, D.C., Nov. 2-5 5
tion of correlated VHE and X-ray ﬂux variability, as
well as correlated spectral hardening in both the VHE
and X-ray bands. The VHE MWL observations were
performed in both ”quiescent” and ﬂaring states for
some of the observed blazars. For the observed HBL
objects, the SEDs can be well described by a simple
SSC model in both high and low states. However, an
additional external Compton component is necessary
to adequately ﬁt the SEDs of the IBL objects.
The Fermi-LAT is already having a signiﬁcant im-
pact on the blazar KSP. In future seasons, the VER-
ITAS blazar discovery program will focus its dis-
covery program on hard-spectrum blazars detected
by Fermi-LAT, and will likely have a greater focus
on high-risk/high-reward objects at larger redshifts
(0. 3 < z < 0. 7). In addition, the number of VHE
blazars studied in pre-planned MWL campaigns will
increase as data from the Fermi-LAT will be publicly
available. In particular, the extensive pre-planned
MWL campaigns will focus on objects that are note-
worthy for the impact their data may have on under-
standing the EBL. The simultaneous observations of
blazars by VERITAS and Fermi-LAT will completely
resolve the higher-energy SED peak, often for the ﬁrst
time, enabling unprecedented constraints on the un-
derlying blazar phenomena to be derived.
Acknowledgments
This research is supported by grants from the US
Department of Energy, the US National Science Foun-
dation, and the Smithsonian Institution, by NSERC in
Canada, by Science Foundation Ireland, and by STFC
in the UK. We acknowledge the excellent work of the
technical support staﬀ at the FLWO and the collab-
orating institutions in the construction and operation
of the instrument.
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