"Do not open until July 4, 2276": What will America's Time Capsule reveal?

As America approaches this milestone anniversary, many celebrations are looking back at our past 250 years, but one looks forward. Tom Medema, project manager for America's Time Capsule, says, "The time capsule gives everybody the chance to talk to the future. It is a form of time travel for ideas and for physical things." Medema is responsible for assembling a team of experts across disciplines – scientists, lawmakers, librarians – to fulfill a 2016 mandate from Congress to honor the …