is typically disposed between porous diffusion media which facilitates a delivery of reactants, such as hydrogen to the anode and oxygen to the cathode. The porous diffusion media are sometimes referred to as gas diffusion media or gas diffusion layers. In the electrochemical fuel cell reaction, the hydrogen is catalytically oxidized in the anode to generate free protons and electrons. The protons pass through the electrolyte to the cathode. The electrons from the anode cannot pass through the electrolyte membrane, and are instead directed as an electric current to the cathode through an electrical load, such as an electric motor. The protons react with the oxygen and the electrons in the cathode to generate water.
It is also known to use other reactants in the PEM fuel cell suchPresident Trump tweeted early Wednesday that China was behind a hack of former presidential opponent Hillary Clinton's emails, in an apparent reference to an article published by the conservative Daily Caller website.

President Trump saw a story from the Daily Caller on Fox News that said China hacked Hillary's non-secure computer and, instead of actually investigating the media, went into attack mode on Trump by saying he had no evidence of the actual hack to protect Hillary, the Justice Department, and the intelligence agencies because, if true, they didn't do their job.

From USA Today:

"Hillary Clinton's Emails, many of which are Classified Information, got hacked by China," the president tweeted. "Next move better be by the FBI & DOJ or, after all of their other missteps (Comey, McCabe, Strzok, Page,