Three revisionist superpowers and collision risk

It started with US forces attacking Venezuela and capturing its sitting president. And almost immediately more American intervention was flagged, in countries such as Cuba, Colombia and Greenland. For the moment Donald Trump’s focus is now on Iran. Senior international correspondent Julian Borger speaks to Reged Ahmad about whether we are seeing a new ramp-up of Trump’s imperialist intentions, or is this simply the same America we’ve always known?