The U.S. and Ukrainian governments touted the signing of a controversial minerals sharing deal as a launchpad for expansive bilateral economic cooperation -- and as a signal of America's long-term investment in a free Ukraine. The full details of the agreement are yet to be released, with Prime Minister Denys Shmyhal expected to present the deal to the Ukrainian parliament -- the Rada -- on Thursday. The deal will also need to be ratified by the Ukrainian parliament, members of which suggested on Thursday it was too early to fully evaluate the agreement. "I don't know what we have signed,"...