>> President Donald Trump lashing out at North Korea Tuesday after it threatened, quote, catastrophic consequences for any US action. Trump tweeting, North Korea is looking for trouble. If China decides to help, that would be great. If not, we will solve the problem without them. The blast coming as a US Navy strike group advanced towards the Korean Peninsula in a show of force.
And after top US Diplomat Rex Tillerson implied the American airstrike on Syria after last week's gas attack could serve as a model when other countries violate international norms. Foreign policy correspondent David Brunnstrom.>> They're trying to send a message of deterrents. What they'll be hoping is to change North Korea's calculations.
>> The US wants North Korea to abandon its nuclear program. And President Donald Trump's meeting with President Xi Jinping of China last week did result in North Korea's biggest ally expressing worry about its recent missile tests. But Brunnstrom says Trump's options are far more limited in dealing with North Korea than they were in the missile attack on a Syrian airfield.
>> I don't think you can compare Syria and North Korea. Most people would agree there's no such thing as a limited military option when it comes to North Korea. The risks are huge, in terms of setting off a very major conflict. North Korea has a huge array of artillery in range of the capital city of South Korea.
I think from the North Korean calculation, President Trump will not be willing to take the risk of any sort of military action against North Korea, because of the number of casualties that it could cause.
And with another round of muscle flexing by North Korea expected to coincide with the birthday of North Korea founder Kim Il Sung, the US may soon learn whether its tougher posture on the world stage will make any difference in Pyongyang.