for a summit this weekend. countries in the 620 work group of 20 as they are called to account for about 85% of global economic output and 75% of trade. the indian capital has been spruced up and security is tight. my colleague is there tracking the summit and sent us a preview of this high profile event. here in new delhi, the countdown to the 620 summit has begun. earlier this morning when i came into the centre of new delhi from the airport i saw at least 100, including modi, right at the front of the centre of them welcoming delegates into this country. this is clearly a big dealfor india. the city of delhi has been sent into a three day public holiday with security beefed up and traffic completely restricted for the event. there is a lot that these leaders will have on their agenda over the weekend. everything from climate finance and debt relief for some of the worlds poorest countries to think such countries to things such as regulation of emerging technologies like ar