There are more tariff threats from President Trump after a tense standoff with Colombia. 

The South American nation rejected US planes of deported Colombian migrants, but has now had to backtrack after Trump threatened large tariffs. 

The President has floated imposing tariffs on a number of trading partners as part of his 'America first' economic policy. 

But New Zealand International Business Forum Executive Director Stephen Jacobi told Mike Hosking that while it's making many countries anxious, he's yet to act on the threats. 

He says Trump appears to be taking his time. 

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