July 10, 2019 - PBS NewsHour full episode

In our news wrap Wednesday, the Federal Reserve gave its strongest signal yet that an interest rate cut is coming. Fed Chair Jerome Powell said growing economic "uncertainty" makes the case for a rate reduction, which would be the first since 2008. Also, U.S. Customs and Border Protection reported the number of unaccompanied migrant children being held dropped from 2,700 in June to 200.

Sir Kim Darroch, British ambassador to the United States since 2016, has resigned after diplomatic memos in which he criticized President Trump were leaked. Although Prime Minister Theresa May and other UK politicians expressed support for Darroch, Boris Johnson, the frontrunner to replace May, did not. Meanwhile, Trump volleyed insults back. Judy Woodruff talks to Ambassador Peter Westmacott.

As national attitudes and laws around cannabis use have evolved, so have the commercially grown strains of the plant. Some marijuana varieties today contain levels of THC, the drug’s psychoactive compound, as high as 50 percent, compared to around 5 percent a generation ago. But as science correspondent Miles O'Brien reports, the effects of cannabis on the human brain are still relatively unknown.

Fans and players gathered in New York Wednesday to celebrate the World Cup title of the U.S. women's soccer team. The repeat champions received honorary keys to the city from Mayor Bill de Blasio and expressed gratitude to their supporters and hopes for the future. Amna Nawaz talks to USA Today’s Christine Brennan about what this achievement means for the team, women’s sports and the country.

Baseball may be America’s pastime, but it’s facing renewed scrutiny over the safety of its spectators after recent incidents involving fans being hit by foul balls. Some professional teams are extending protective netting in response, but Major League Baseball itself has so far declined to change its requirements overall. John Yang talks to ESPN baseball columnist Jeff Passan for analysis.

Heating and cooling buildings consumes 40 percent of energy used across the world. As climate change continues to threaten the planet, rising temperatures may only increase the usage. Now, an architect in Boston is trying to change not just how much energy temperature regulation in buildings requires, but how much it produces. Cristina Quinn of WGBH in Boston reports.