In a federal criminal complaint, an excerpt from which you'll find below, one of the accused, Abdul Kadir, reportedly told cohorts to use the popular satellite software after he determined that surveillance video shot by the men was "not sufficiently detailed for operational purposes."
This is, of course, mostly wrong-headed nervousness. Any technology can be used for many purposes -- if terrorists used Macs would we be going after Apple? -- but we are the most nervous about the newest technologies. In this case, we are so nervous about the newly transparent society (hat tip, David Brin) in which we live, we are looking for reasons to panic about image technology -- and we'll find 'em.