In the case of California, an audit of international equity and debt holdings of CalPERS and other publically-managed funds would be prudent to determine if a significant problem exists and, if so, its dimensions.
The smallest of these chargers, which convert light into electricity, weighs just 4 ounces, has dimensions that are slightly larger than a sheet of paper, and can provide significant power to a soldier in the field without the need for an alternative fuel source.