USA
Trump threatens to revoke licence of NBC news
US President Donald Trump says it's "disgusting" that reporters can publish whatever they want, after NBC reported he demanded a tenfold increase in the United States' nuclear arsenal. Audio
Napa Valley fires came from nowhere, spread at speed
Fifteen people are dead after fires burnt through 50,000 hectares in northern California, with absolutely no warning. Napa Valley Register Editor Sean Scully joins Checkpoint. Video, Audio
Trump ties border wall to Dreamer plan
The White House has tied any new deal on young undocumented immigrants to a clampdown on illegal immigration, including a border wall with Mexico.
Pence leaves NFL game over protests
US Vice-President Mike Pence has walked out of a National Football League (NFL) game after several players refused to stand for the US national anthem.
Puerto Rico's 'thrown our budget out of whack' - US President
Donald Trump has visited Puerto Rico, telling officials they should be proud that hundreds of people didn't die after Hurricane Maria as they did 'in a real catastrophe' like Hurricane Katrina. Video, Audio
Video: Shooting 'just destroys my heart' - US ambassador
Watch - The US Ambassador to New Zealand Scott Brown says he doesn't know what the answer is to stopping more mass shootings in America. Video, Audio
Witnesses describe horror of Las Vegas terror attack
Police say they have found at least 42 more firearms, explosives and thousands of rounds of ammunition following a raid at the Nevada home of the Las Vegas gunman. Video, Audio
Las Vegas shooting death toll likely to rise
The brother of the US gunman who killed 59 people at a Las Vegas concert says he has no idea why his brother opened fire, nor that he had a collection of weapons. Correspondent Patrice Howard joins… Video, Audio
Las Vegas shooting: 'I thought we were done'
US authorities are puzzled why lone-gunman Stephen Paddock, 64, opened fire on people attending the Route 91 concert in Las Vegas, killing 59 and injuring more than 500. Video, Audio
US domestic terror: Las Vegas just latest lone gunman
The attack, on a country music festival in which 59 people were killed, is the deadliest mass shooting in recent US history.
'Learning about the universe increases your empathy'
Other potentially habitable planets are far away and hard to find but there are over 10 billion in our galaxy, says NASA astrophysicist Dr Natalie Batalha. Audio
Twitter's Russia briefings 'inadequate'
The US Senate Intelligence Committee has criticised Twitter for offering an "inadequate" appearance in briefings on Russian interference in the 2016 presidential election.
Impact of US man's treatment in N Korea 'yet to be seen'
Former US diplomat Evans Revere counselled Otto Warmbier's family for over a year after he was detained in North Korea. He talks to John Campbell. Video, Audio
Dancing Bans in America
Many of us will remember the film Footloose, about a small American town that banned dancing with a quintessentially 80s soundtrack. Turns out, the story wasn't that fantastical - throughout history… Audio
More North Korea rhetoric from Trump
The US President Donald Trump has again taken North Korea to task at the UN. Audio
Wild horses couldn't drag her away
With her two sisters, writer and photographer Kelly Wilson made wild Kaimanawa horses a household name via the TV series Keeping up with the Kaimanawas. She says it's time the Australian public began… Audio, Gallery
Barefoot Ted on the joy of natural running
A skipping rope can help people re-learn the 'primal skill' of running without shoes, says Ted McDonald, aka Barefoot Ted. Video, Audio
US correspondent Susan Milligan
Susan Milligan talks to Kathryn Ryan about President Trump's war of words with North Korea, kneeling for NFL, and health care. Audio
North Korea, US leaders 'emotionally entangled' in tensions
An expert on US and North Korea relations says the countries' respective leaders are becoming 'emotionally entangled' in their ongoing back-and-forth. It comes after a top North Korean official this… Audio
Trump up in arms over kneeling protest
US President Donald Trump has demanded NFL teams 'fire or suspend' players who kneel during the Star Spangled banner. Audio