In other words, despite acknowledging that they cannot tell from their study whether e-cigarette use precedes smoking or whether smoking precedes e-cigarette use, they nonetheless draw the conclusion that e-cigarette use precedes smoking.

(See: Dutra LM, Glantz SA. Electronic cigarettes and conventional cigarette use: a cross-sectional study. Published online March 6, 2014. JAMA Pediatr. doi:10.1001/jamapediatrics.2013.5488.)

This is quite a twist, since usually Congress oversees the enforcement of laws. Here, Representatives Waxman, Harkin, and Welch are requesting that their state Attorneys General violate the law by illegally enforcing an invalid contract.

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