Americans have about $1.3 trillion in student loan debt. And there's yet another survey out that shows students in this country are confused about their loans, in the dark when it comes to knowing what they've borrowed, uncertain about how to pay them back.

If you've been following the news about the spread of the Zika virus throughout Latin America, you've probably gotten lost in the jargon once or twice. What's a vector? A reservoir? What's local transmission — the opposite of express transmission?

So we went to the experts to help us wade through all this murky language. And they were helpful — sort of. Because it turns out that even the experts don't agree 100 percent on the definitions.

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Transcript

MICHEL MARTIN, HOST:

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Transcript

MICHEL MARTIN, HOST:

Vermont Senator Bernie Sanders has said he is a different kind of candidate running a different kind of campaign. He doesn't have a SuperPAC and he doesn't want one. One of the things his supporters say they like about him is Sanders isn't a typical politician.

With the assistance of Russian airstrikes, President Bashar Assad's forces are pressing ahead with a major offensive around the northern city of Aleppo, a development that has sent another wave of Syrian civilians seeking refugee in neighboring Turkey.

One of the Vatican's most prominent critics, who pushed for greater protections for children and harsher punishments for pedophile priests, has taken a leave of absence from the pope's advisory commission on clerical sex abuse.

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