reality let me say to 2 things him i clearly understand the concerns in london with having this frank demick now in this large urban setting directly on the border between go and run but. and i know this crossing point from his it's true it's a good thing you know last year with 40000 people crossing the border every day this is a situation that truly but from my experience as an m.s.f. doctor and in west africa. we know that closing regular. border post always have the risk of forcing people into non-money toilets pathways i see i see and having said that that will have more infections being detected how great is the risk that you know this goes outside of the affected regions because if you can connect to other parts of the continent through from goma. excellent question i think. this border closed the border situation shows very much how important it is to 1st of all to build up trust with the population to not take steps that make. the population even more boring to make them hide away this is exactly what you bono want the ok to kill and spread in the darkness we have to do this and we