Twister outbreaks are getting bigger. Scientists don't know why.

December 02 December 02     FOLLOW US      NEWS SPORTS LIFE MONEY TECH TRAVEL OPINION WEATHER USATODAY.COM   NEWS   weather   Twister outbreaks are getting bigger. Scientists don't know why.     The killer tornadoes are coming in bigger and bigger swarms.     Read Story     nfl           No-call costs Vikings. When is enough enough? Sam Bradford's facemask appeared to be grabbed on failed two-point conversion.     nation           Disparity but also bias? For black people, police pursuits deadlier An investigation by USA TODAY shows black people were killed in police chases at a rate three times higher than others, a longstanding, deadly and, until now, overlooked inequality.     nation-now           Carrier incentives stir debate over 'rewarding' offshoring Some experts say the deal sets a troubling precedent.   Advertisement   reviewedcom           8 gifts for new homeowners that are actually useful Home is also where your favorite gifts are.     world           Three months after the Olympics, Rio is broke From the front steps of Rio de Janeiro's Municipal Theater, the ballet company danced, and opera singers belted out the strident "Carmina Burana."     news           5 things you need to know Friday The biggest news to start your day.     world           Mattis appointment would signal wartime posture Trump to select former Marine combat commander as new Defense secretary.     politics           Trump, Clinton aides clash at election forum The conversation got contentious over whether Trump had boosted and benefited from the so-called alt-right.     politics           Obama supports registering women for military draft Obama is the first president to support universal draft registration since Jimmy Carter.     The Day In Pictures Gallery President Obama, with Michelle Obama and daughter Sasha, sing with Santa Claus and others during the lighting ceremony for the 2016 National Christmas Tree on the Ellipse near the White House in Washington, D.C.     Popular Stories Mnuchin outlines 'largest tax change since Reagan' Sanders says Carrier deal sets a dangerous precedent Trump's 21 potential court nominees are overwhelmingly white, male and from red states   To forward this e-mail to a friend, click here You are currently subscribed to this newsletter with the address: mantiskhiralla@gmail.com. To UNSUBSCRIBE, please click here. Manage Subscriptions | Help | Advertise | Home Delivery | Privacy Policy - Your California Privacy Rights © 2016 USA TODAY, a division of Gannett Satellite Information Network, LLC. 7950 Jones Branch Drive, McLean, VA 22108