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In the quest for better cancer medicines, vaccines that treat rather than prevent disease are getting lots of attention.

More than 90 clinical trials have tested therapeutic vaccines in cancer patients, but the results have been a mixed bag.

A recent study in mice suggests that changing a traditional ingredient in the vaccines could make a big difference.

Calling them "three outstanding individuals" who will help him tackle some tough problems, President Obama on Monday morning nominated:

-- Gina McCarthy, currently an assistant administrator at the Environmental Protection Agency, to lead that agency. She would succeed the departed Lisa Jackson.

-- Ernest Moniz to be the next secretary of energy, replacing Steven Chu, who like Jackson decided not to stay for Obama's second term. Moniz is director of MIT's Energy Initiative and is a former undersecretary at the department.

Britain's Queen Elizabeth II was just seen leaving London's King Edward VII hospital, where she had been admitted over the weekend to be treated for symptoms of gastroenteritis.

If former NBA star Dennis Rodman's read on Kim Jong Un is correct, the CIA and State Department might be in need of a major overhaul in their assessments of the North Korean leader.

Rodman, the only American to have met and talked with Kim, appeared on ABC's This Week with George Stephanopoulos to talk about his two-day visit to North Korea last week.