In the NHL, fans love to hate Matthew and Brady Tkachuk -- the sibling hockey stars who love to fight and talk smack. But now that they're the faces of the Olympic men's hockey team, things are different.
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Becky Sullivan has reported and produced for NPR since 2011 with a focus on hard news and breaking stories. She has been on the ground to cover natural disasters, disease outbreaks, elections and protests, delivering stories to both broadcast and digital platforms.