Poor diet is now responsible for a greater burden of disease than smoking, at least in America.
Food companies must be controlled much as tobacco companies have been.
See Collaboration with the New Vectors of Disease
that points out that the food industry "...may require tobacco industry-style regulation."
Banks must be controlled as well, so that we don't get a repeat of 2008 -- but I think Obama missed his chance to regulate the banks in 2009,
and another financial calamity is in the cards.
The last five years have been a gigantic lesson in moral hazard,
whether in the USA or in Europe Union, the UK, or Japan. Central banks covered up the mistakes and fraud.
Energy use and extraction must be controlled if we are to prevent catastrophic global warming (+6℃) by the year 2100.
Yet we have been moving in the wrong direction, and public skepticism in the US has actually been growing
(probably due to the efforts of right wing think tanks and spending by Koch Bros. and their ilk).
So while we won the war against the tobacco companies (mostly because we didn't need to smoke),
the fight against Big Food, Big Banks, and Big Energy is harder because these are less discretionary.
Tobacco may be addicting for its users, but food, money, and energy are primary to any civilization.
Good luck with the soda tax.