>> On a visit to Seoul, US Secretary of State Rex Tillerson sending a message to North Korea over its nuclear program on Friday.>> Let me be very clear, the policy of strategic patience has ended. We're exploring a new range of diplomatic, security and economic measures. All options are on the table.
>> But despite the tough talk, targeting one of the world's most unpredictable regimes, Tillerson was light on details and it's unclear if he's signalling a substantial shift in US foreign policy, says Reuters correspondent, Arshad Mohammed.>> US presidents, going back decades, have said that all options are on the table in terms of dealing with North Korea.
For a lot of people who've tracked North Korea for a long time, the threat of military action often rings hollow because to attack the North is to invite the possibility of the destruction of a big chunk of the South. Which is a price that most American presidents would not be willing to pay or even to risk.
>> Just hours after Tillerson's declaration, President Trump reinforced the hardline stance on Twitter, pointing the finger at China for doing little to help.>> When I read President Trump's Tweet, was there might be a sort of good-cop, bad-cop routine going on here. The Chinese, for example, announced in February that they were gonna start cutting off coal imports from North Korea to China.
That's a huge source of foreign exchange for the North. The Chinese have actually been somewhat more helpful, even since Trump took office.>> The harsh words from the White House coming as Tillerson makes his first official trip through Asia as America's top diplomat.