| Article ID: | iaor20117405 |
| Volume: | 40 |
| Issue: | 2 |
| Start Page Number: | 244 |
| End Page Number: | 248 |
| Publication Date: | Apr 2012 |
| Journal: | Omega |
| Authors: | Plastria F |
| Keywords: | military & defence |
We indicate a number of shortcomings in the second stage in the approach of Bell et al. that may lead to unsatisfactory results. Some possible remedies are investigated.