TBILISI, Georgia — U.S. National Security Adviser John Bolton said Friday that Russian President Vladimir Putin has been invited to visit Washington next year.

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Federal authorities have one person in custody in connection with a string of suspicious packages that have targeted several public figures this week, according to a top Justice Department spokesperson.

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Discovery of explosives addressed to prominent Democratic figures this week took the country’s political divisiveness to grave new heights. How did we get here, and how can we recover? Judy speaks to Professor Joanne Freeman, author of “The Field of Blood: Violence in Congress & the Road to Civil War” and Carolyn Lukensmeyer, executive director of the National Institute for Civil Discourse.

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With the country on edge over a widening pipe-bomb scare, talk of national unity quickly gave way to finger-pointing. President Donald Trump cast blame on the media for fomenting anger in society, while candidates across the country traded partisan broadsides.

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The Latest on pipe bombs sent to prominent critics of President Donald Trump (all times local): 12:30 p.m. The name of the man detained in connection with the pipe bomb scare is Cesar Sayoc, 56, of Aventura, Florida, according to law enforcement officials.

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Win or lose in the race for the majority, House Republicans are at risk of plunging into a messy leadership battle after the November election, with the party lacking a clear heir apparent to take the place of House Speaker Paul Ryan.

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It's true, Americans are getting larger and airline seats are shrinking. So confrontations between oversize airline passengers and their fellow travelers are inevitable.

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For something called the Standard Model, the foundational theory of particle physics is confronting a lengthy list of non-standard data. Neutrino oscillations, dark matter and energy, the imbalance between matter and anti-matter, quantum gravity—there's a growing list of natural phenomena that don't seem to fit.

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It can be difficult to spot the signs of someone with high-functioning depression. That’s because, on the outside, they often appear completely fine. They go to work, accomplish their tasks, and keep up relationships. And as they’re going through the motions to maintain their day-to-day life, inside they’re screaming.

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Mona Mazbouh sat on the floor of a single police cell in Cairo, with no light, bed, and with only cockroaches and a rat as company. The water that ran from the tap was dirty, and without a toilet, she had to use a hole in the wall as her makeshift bathroom. She tried to rest, but every time she’d lay down, a police officer would kick the door and scream in her face.

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