Just want to make people aware that it's very conceivable that rainbow boas will be among the next targetted species on the DOI hit list. Here's an excerpt from an HSUS comment that was made to the DOI. (I don't have the link to the whole document yet, sorry.) Please don't think it can't happen.
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I. Requested addendum to constrictor genera referenced in the Notice of Inquiry
According to the Notice of Inquiry, the USFWS is soliciting information on “Constrictor Snakes from Python, Boa and Eunectes genera.” However, there are constrictor genera that are
commonly referred to as pythons and boas, but are classified under other genera, including Epicrates, Liasis and Morelia. Even though the number of these animals imported into the
United States is relatively low compared to species classified under the Python, Boa and Eunectes generas, we strongly recommend that the USFWS include these genera in any Proposed Rule to add these species to the “Injurious Wildlife Species” list.
The volume of a particular type of animal imported into the United States and/or transported across state lines is an important risk factor that may contribute to the establishment of feral snake populations and should be considered, along with many other factors, when determining whether to add a particular taxon to the “Injurious Wildlife Species” list. However, Reed (2005)
maintains that in some cases, certain species imported in lower numbers may actually pose the most risk of establishing feral populations compared to species imported in higher numbers. He
uses the carpet python (Morelia spilota) of Australia as an example.

