We get the latest on President Trump’s much-watched summit with Russian President Putin in Alaska from NPR’s Tamara Keith. This article was originally published on WBUR.org.

For foreigners, the risks of visiting China have been growing, including exit bans, arbitrary arrests, and a host of vague laws about security.

Scientists have recorded a human embryo implanting in a womb in real time. The implications of how it happens could lead to more and better treatments for infertility.