ProPublica reporter Justin Elliott discusses his reporting on Supreme Court Justice Samuel Alito’s ties to billionaire Paul Singer. NBC News' Ron Allen reports the latest developments in the search for the missing Titanic tourist submersible. Former Education Sec. Arne Duncan examines a decades-low drop in national math and reading scores among American students. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.