water analysis. why do you think they ve done this? well good morning, thanks for having me, dana. one of the things is that cdc has a tendency to look at data and make sure that they believe that data is accurate. they call it curating the data. so very frequently the data is out of sync to be able to be in realtime to respond. i give one example. when i was cdc director the first briefing i asked for was on opioid related deaths. they gave me a great briefing in april of 2018. and when they finished the briefing i asked them what the data was through and they told me it was through march of 2015. it is april 2018. this is a major problem. we had 80,000 deaths. i m trying to understand how do we use the data to respond with the public intervation. they explained to me i didn t understand the complexity of gathering the data to make sure