This is absurd. 

'The U.S. Food and Drug Administration has officially changed the federal minimum age to purchase tobacco from 18 to 21.

The new minimum age applies to all tobacco products, including e-cigarettes and vaping cartridges. 

The provision came as part of a $1.4 trillion spending package signed by President Donald Trump Dec. 20, which amended the Federal Food, Drug and Cosmetic Act, which also included $1.4 billion reserved for building the U.S.-Mexico border wall and $25 million for gun violence research.'

While they're at it they may as well raise the age of adulthood to 21, the age at which you can join the armed forces to 21, etc. When you are legally an adult you should be able to buy whatever you want. As the saying goes, if your old enough to fight and die for your country you're old enough to buy alcohol, and now tobacco. 

I won't even go into how the border wall and gun violence research has any business being rolled into a spending package for the Federal Food, Drug and Cosmetic Act. 

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