In April, the President will also host a Nuclear Security Summit to advance his goal of securing all vulnerable nuclear material within four years.

WHITEHOUSE: VP Biden: The Path to Nuclear Security

The SEC's latest report clarified that disclosure of material nonpublic information on the personal social media site of an individual corporate officer without advance notice to investors that the site may be used for this purpose is unlikely to qualify as an acceptable method of disclosure under securities laws.

WSJ: SEC Says Companies Can Use Social Media to Alert Investors