People work to remove an uprooted tree from a road in Leogane, Haiti. Tuesday, Oct. 4, 2016. Matthew slammed into Haiti's southwestern tip with howling, 145 mph winds Tuesday, tearing off roofs in the poor and largely rural area, uprooting trees and leaving rivers bloated and choked with debris. ( AP Photo/Dieu Nalio Chery)

7 things to know now: Matthew roars through Caribbean; VP debate; Ben Stiller's cancer

Here's a roundup of news trending across the nation and world today.

What to know now: 

1. Matthew hits Haiti: Hurricane Matthew moved across the southwestern tip of Haiti on Tuesday, downing trees, taking out bridges and claiming at least 11 lives. The storm, which brought sustained winds of 145 mph, hit the country that has still not fully recovered from an earthquake that struck there six years ago. Matthew passed the eastern tip of Cuba Tuesday night as it headed toward the Bahamas on a forecasted track that would take it toward Florida and up the east coast of the United States. Evacuation orders have been issued for southeast Florida.

2. VP debate: Sen. Tim Kaine (D-Va.) and Indiana Gov. Mike Pence clashed at Tuesday’s vice presidential debate over their ticket’s stance on immigration, taxes, emails and national security. Pence, Donald Trump’s running mate, seemed more measured than did Kaine who spoke quickly and interrupted often. One of the night’s most memorable, and maybe surprisingly calm, discussions came at the end of the debate when the two men, both raised Catholic, explained their views on abortion.

3. Stiller on his cancer: Actor Ben Stiller revealed Tuesday that he was diagnosed with prostate cancer in 2014. He was treated for the disease, having surgery, he said, and has been cancer-free since then. He credits a PSA (prostate-specific antigen) test with saving his life. Prior to his surgery, Stiller was monitored for about 18 months by his doctor using the  test which some say isn’t a good diagnostic tool because it returns a high number of “false-positive” results.

4. Yahoo searches emails: According to a report released Tuesday, Yahoo scanned millions of its user’s emails after the U.S. government pressured them to check the correspondence for a string of letters, numbers or other characters. Three former Yahoo employees said the company received a classified demand from either the National Security Agency or the FBI to conduct the search.

5. President Clinton on Obamacare: Former president Bill Clinton tried Tuesday to walk back comments he made Monday about the Affordable Care Act, saying the signature legislation of the Obama administration “did a world of good.” The comments came after Clinton on Monday said the health care system dubbed “Obamacare” had serious flaws. "So you've got this crazy system where all of a sudden 25 million more people have health care and then the people who are out there busting it, sometimes 60 hours a week, wind up with their premiums doubled and their coverage cut in half. It's the craziest thing in the world," Clinton said. 

And one more

A test of a system that would allow astronauts to escape a spacecraft in the event of a problem during launch will be tested Wednesday in a Texas desert. Jeff Bezos, Amazon CEO and head of the space firm Blue Origin, says the test of the New Shephard system is set for 10:45 a.m. (ET).  The system is designed to separate the crew cabin from the booster rocket after liftoff should a problem occur. The capsule will push itself away from the rocket and it will parachute to the ground if all goes well. 

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