News briefings for the 2019 AAAS Annual Meeting begin Thursday, 14 February.
Please view the news briefing schedule for more information.
How to interact during the live webcast:
Submit your questions or comments in the chat window below.
State your name and affiliation, and if there is a particular speaker you would like to address your question to.
Questions and comments will be relayed to the speakers for response. We will try to get to as many questions from online participants as possible.