let's talk to professor teo yik ying, who is dean of the national university singapore saw swee hockg us here on bbc news. many countries around the world are opening further this week. it's a really important we are entering, both in singapore but internationally as well. yes, it is. today, singapore, we are ending our circuit breaker. talk me through exactly how singapore has fared through this whole lockdown, because there was a period where it was being prays for how he was dealing with coronavirus, but then because it's a small city state, it relies on globalisation, a lot of cases we re on globalisation, a lot of cases were imported and that had an impact as well. yes, it did, because any first wave in january, as well. yes, it did, because any first wave injanuary, it as well. yes, it did, because any first wave in january, it was coming... the second wave came from singaporeans. a fraction brought the disease back to singapore and that started the second wave, which is what accounted for a large rise in the number of cases that we have in singapore. in terms of migrant worker