Representatives Henry Waxman of California and Peter Welch of Vermont, along with Sen. Tom Harkin of Iowa, have sent letters to the attorneys general in their respective states asking them to fold e-cigarettes into the Master Settlement Agreement with Big Tobacco as a way of keeping the electronic devices out of the hands of children, writes columnist Daniel Fisher. W. Kip Viscusi, University Distinguished Professor of Law, Economics, and Management, is quoted. [Read at Forbes]