NPR News Now covers the U.S. withdrawal of long-range bombers from a UK base due to a credible drone threat linked to Iran, alongside diplomatic pressure on Russia regarding a suspected pneumonic plague death in Siberia. The broadcast also reports on Krista Pike, who survived a failed execution in Tennessee, and the Nobel Prize in Chemistry awarded to Henri Kagan and Kenzo Soai. Additionally, the segment highlights a Michigan gubernatorial debate between John James and Jocelyn Benson, the formation of Tropical Storm Isaias, and the death of actress Eva Marie Saint at age 102.