mr. mike rozga is here today from iowa to talk about his son david's tragic death associated with the usea synthetic. there are also many young people that are a testament to the deadly impact that nps is having on our families and communities. although the u.n., the federal government, and all 50 states and the district of columbia have developed responses to nps, there are still ways it can be manufacturing that make it challenging. all nps are manufactured in china. given the fatal and nonfatal effects of these substances, this clearly needs to change. the united states is leading discussions with international partners on how the global response to nps can be improved. in april at the special session of the u.n. general assembly we joined other countries to encourage the world health organization to engage more proactively in the review of services for international control. and while international control of drugs and chemical precursers are important, the existing international scheduling framework is underutilized and is unable to control the overwhelming number of nps that exist o