I think there is a BIG difference between the logic of a congressman feeding pork to his distric versus peer reviewed science. Your "linky" is:
Accession Number : ADA187998
Title : Use and Care of the Extended Cold Weather Clothing System (ECWCS).
Corporate Author : ARMY NATICK RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA
Handle / proxy Url : http://handle.dtic.mil/100.2/ADA187998
Report Date : 1987
Pagination or Media Count : 55
Abstract : The Extended Cold Weather Clothing System (ECWCS) is a layered insulating system adjustable to personal preference, metabolism, and prevailing weather conditions. The system is designed to maintain adequate environmental protection between +40 deg F and -60 deg F (4 deg C and -51 deg C). The system uses moisture management principles to transfer perspiration away from your skin so you will remain dry and warm. Under certain conditions such as high work activity followed by inactivity, the use of wool or wool/cotton clothing items with ECWCS will reduce the level of environmental protection provided by ECWCS. (RN added comment for Mike - Please note the following statement and its relevance to the topic of this thread) In cold, wet and arctic environments it is recommended that you use only clothing items listed in Appendix A. It is especially recommended that you not use any items which are made with wool or wool blends…