A.M. Links: Snowden Backs Apple in Privacy Showdown, Bernie Leads Hillary in New Poll, University of Texas to Allow Handguns in Classrooms

• Edward Snowden is supporting Apple in its showdown with the FBI over a court order requiring the company to unlock the iPhone of one of the San Bernardino shooters. "The FBI is creating a world where citizens rely on Apple to defend their rights, rather than the other way around," Snowden declared on Twitter.

• "Vermont Sen. Bernie Sanders fares a bit better than rival Hillary Clinton in head-to-head matchups against Republican presidential contenders" according to a new poll.

• With the South Carolina primary this Saturday, the war of words between Donald Trump and Ted Cruz is heating up.

• The AFL-CIO has still not made an endorsement in the Democratic presidential primary.

• South Carolina Gov. Nikki Haley has endorsed Marco Rubio for president.

• University of Texas at Austin President Greg Fenves will allow handguns in university classrooms.

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