Choose a current US senator, and on the book titled, Powerful Medicines : The Benefits, Risks, and Costs of Prescriiption Drug, authored by Jerry Avorn, write a memo (5 pages or less) including the following, i) what its about, ii) why its important and whether/how you think circumstances may have changed (or not) since the publishing of the book, and iii) what it means for the hypothetical US senators constituents