Morning Edition

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DAVID GREENE, HOST:

After the tragedy in Newtown, Connecticut on Friday, many parents dropping their kids off at school this morning are facing a lot of anxiety. Today in Your Health, we asked NPR's science correspondent Shankar Vedantam to come by to talk about how tragedies shape our perceptions of risk.

Shankar, good morning.

SHANKAR VEDANTAM, BYLINE: Good morning, David.

GREENE: So tell us what we know from school shootings of the past. I mean, what sort of impact will this tragedy have on parents and how they think?

There's still no budget deal to prevent the automatic spending cuts and tax increases scheduled to go into effect at the end of this year. There are some tax deductions, credits and other breaks lawmakers are weighing in this budget debate.

A federal court in Texas on Monday will take up the case of a high-school student who refuses to wear her location-tracking school ID.

The 15-year-old sophomore says the ID badge, which has an embedded radio frequency identification tag, is a violation of her rights. The student, Andrea Hernandez, believes the ID is "the mark of the beast" from the Book of Revelation.

An old complaint about the safety of childhood vaccines is finding new life at the United Nations.

The U.N. Environment Program is considering a ban on thimerosal, a vaccine preservative that is widely used in developing countries. The program expects to make a decision sometime after a final meeting on the issue in January.