https://apnews.com/a64b03a24104a56e6d379ef246bcbd62 > WASHINGTON (AP) — Despite a massive effort, the nation faces “truly daunting” challenges to deploy millions of coronavirus tests to safely re-open the economy, the head of the National Institutes of Health told lawmakers Thursday. > NIH Director Francis Collins told the Senate Health, Education, Labor and Pensions committee that government and private industry have launched a $2.5 billion, taxpayer-funded effort to develop, manufacture and distribute technology capable of accurately testing millions of people a week by the end of the summer or the fall, before the annual flu season.