NPR News covers a severe heat wave gripping the eastern U.S., driven by high pressure, with peak temperatures expected through July 4th. The broadcast also reports on a bipartisan congressional ceremony in Philadelphia commemorating the vote for independence from Great Britain. International news includes a deadly Russian drone attack on Kiev, the start of Ebola treatment trials in the DRC, and a self-immolation protest at the UN. Additionally, Spotify removed manipulated streams for a song linked to prediction market betting, and the episode previews Argentina’s World Cup match against Cap…