text: 2009 Fermi Symposium, Washington, D.C., Nov. 2-5 
  
  detailed variability analysis for one of two reasons: 
  (1) too few data points or (2) ﬂux measurement un- 
  certainties on the order of the amplitude of observed 
  variability. It is important to note that, due to dis- 
  crepancies between the sampling frequency in both 
  bands, the variability indices for the 850µm band may 
  be artiﬁcially depressed due to the fact that there are 
  not always corresponding measurements at higher fre- 
  quencies during ﬂaring epochs. 