The White House defended its America-first COVID-19 vaccination strategy this week, calling it justified because of the country's terrible outbreak and promising to share shots after Americans are protected. Global leaders and residents of other countries voice increasing criticism of the United States and other wealthy nations for buying up most of the world's supply of COVID-19 vaccines. Tedros Adhanom Ghebreyesus, director general of the World Health Organization, has been particularly condemning, saying rich countries are directly responsible for the deaths of high-risk people in low- and middle-income countries. » Subscribe to USA TODAY: http://bit.ly/1xa3XAh » Watch more on this and other topics from USA TODAY: https://bit.ly/2Vq6Nnq » USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR.