Wearing the colors Ukraine's flag has widely been seen as a way to support that country and oppose Russia's invasion.

Ukraine's military has been inundated with volunteers. That includes women, who are not required as men are to stay and fight the Russian invasion.

The Biden administration is encouraging U.S. oil companies to increase their production to help curb record-high gasoline prices. Turns out, however, that boosting output is easier said than done.

The deaths of three journalists this week in Ukraine are a reminder of the perils of covering conflicts from behind a camera. Photojournalist Marcus Yam is on assignment in Kyiv covering the war.