We discuss frustrations in Venezuela and the role of opposition leader María Corina Machado. Plus: An explosion in Monaco targets a Ukrainian oligarch; and our America 250 series looks at tipping points in US-UK history.

What we learnt at the UNGA: the speeches, the treatise and the catering
1:04:16

China and Iran take their message to the UN and Washington
57:40

What makes a good speech at the UNGA?
58:43