A link from DHS:
http://www.dhs.gov/dhspublic/interapp/editorial/editorial_0335.xml
ON THE NET...
http://news.google.com/news?hl=en&q=liquid%20%2B%20chemical%20%2B%20devices&btnG=Google+Search&sa=N&tab=wn
http://news.google.com/news?hl=en&q=liquid%20%2B%20chemical%20%2B%20device&btnG=Google+Search&sa=N&tab=wn