A new student record system adopted by the Los Angeles Unified School District has caused chaos for kids, teachers and administrators. Kindergarteners were accidentally enrolled at high schools, while hundreds of older students spent weeks without class schedules. Judy Woodruff…

What types of information are companies gathering about you? How can they use this information, or even trade it? And what rights do consumers have to learn how they're being tracked? Julia Angwin, senior reporter at ProPublica and the author…

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