Judy Woodruff:

In the day's other news: Wall Street opened the week with a rally, on investors' hopes of easing pandemic-related restrictions.

The Dow Jones industrial average gained 358 points close at 24133. The Nasdaq rose 95 points, and the S&P 500 added 41.

A second wave of emergency loans became available to small businesses today under the Paycheck Protection Program. Congress approved the extra $310 billion in funding last week. The initial round of loan money ran out in just two weeks' time.

Officials in South Korea today renewed calls for caution amid speculation about Kim Jong-un. Rumors about the North Korean leader's well-being have swirled as he disappeared from view in recent weeks. The South's unification minister said today that his government is confident there is nothing to the talk.

A spokeswoman followed up.