you know xenophobia graces when in fact we are all dealing with the outbreak of a pretty unusual donica nobody really knows how to deal with that well it might not be as an if. i think if those travel bans were motivated on the basis. of race or difference it's just that sometimes those travel bans have been accompanied with statements from political leaders that have a racial tinge so for example there's many countries that don't wouldn't allow people to come in if they have citizenship one country but if they're not of that citizenship then they are allowed in so there's those kind of exceptions that don't really make sense sometimes reveal motives for things that aren't aren't very savory in the context of travel bans even if they aren't xenophobic. they were still illegal under the international health regulations and i think that's enough itself well let me see is this moment to ask you specifically about those regulations and i know that a couple of weeks ago you signed an open letter published in the journal lancet calling against the travel ban you argued that it's not only exce