Eight witnesses expected to testify in impeachment hearings this week
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It could be a blockbuster week of testimony this week in the impeachment hearings. Eight witnesses are expected to speak publicly. The witness list includes former Ukraine envoy Kurt Volker and three people who heard first-hand the July 25th phone call that led to the impeachment inquiry. Nancy Cordes reports.
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Global headlines from Iraq, Argentina and Italy
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Protests continue in Iraq; Argentina's president-elect promises to legalize abortion; and Venice declares a state of emergency after third flood in less than a week. Rylee Carlson rounds up world headlines for CBSN.
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How drought is impacting giant sequoia trees
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In our Eye on Earth series, we are walking among giants: ancient trees. The huge sequoia groves of California draw millions of tourists a year, but these forests are more than photo opportunities. They are longtime warriors in the battle against climate change. Jonathan Vigliotti reports.
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