Bottles of nicotine liquid, or e-liquid, with an e-cigarette. (Photo By Lauri Rantala (Flickr: 510N e-cigarette and e-liquids) [CC-BY-2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons) Legislation introduced in the U.S. Senate last week calls on the Consumer Products Safety Commission to require child-resistant packaging for liquid nicotine marketed to consumers. More from Kansas Public Radio’s Bryan Thompson.