Amid Romaine Warning, Trump Administration Blocks Rule Mandating Farmers Test Water Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Workers plant romaine lettuce, Thursday, April 26, 2018, at the EG Richter Family Farm in Puyallup, Wash. ( AP Photo ) Produced by Rob Gunther Hosted by Tanzina Vega Produced by PRI and WNYC