This represents an intermediate value from a range of estimates that appear in the economics literature, and it is a value the EPA uses in rulemaking support analyses and in the Section 812 Reports to Congress.
There is a range of estimates in the economic literature.
The nondrinking, nonsmoking, noncarousing, and mostly monolingual CIA officials of today do not have the vices of either their more adventurous contemporaries or their flamboyant Ivy League predecessors, but it is really unfair to expect them to cope with all those foreigners out there.