During the 1960s, the feds asked fresh-out-of-school physicists to try to build a nuke with no prior knowledge.

Trump's order is aimed at releasing documents related to the assassinations of the former president, presidential candidate and civil rights leader.

The documents ... information on covert Cold War operations. In holding back some records, Trump said at the time: "I have no choice – today – but to accept those redactions rather than ...