Thirteen US Senators have addressed a letter to FDA Commissioner Margaret Hamburg asking for stronger restrictions on antimicrobial use in food-animal production. The request focuses upon the two, relatively weak, "draft guidance" documents: #209 (June 2010); and #213 (April 2012).

The letter, dated August 13, and the two Draft Guidance documents are posted below for our readers, convenience.

Signing the letter were thirteen US Senators: Dianne Feinstein (D-CA), Frank R. Lautenberg (D-NJ), Herbert H. Kohl (D-WI), Bernard Sanders (I-VT), Susan M. Collins (R-ME), John F. Kerry (D-MA), Patrick J. Leahy (D-VT), Kirsten Gillibrand (D-NY), Barbara Boxer (D-CA), Joseph I Lieberman (ID-CT), John F. Reed (R-RI), Maria E. Cantwell (D-WA), Ronald L. Wyden (D-OR).