An Expected Inflation Spike

U.S. Consumer Prices Increased in March by Most Since 2012
https://www.bloomberg.com/news/articles/2021-04-13/u-s-consumer-prices-increased-by-more-than-forecast-in-march 

How Not to Get Fooled by the New Inflation Numbers
https://www.nytimes.com/2021/04/13/upshot/guide-new-inflation-numbers.html 

Related:

The Consumer Price Index Is Not Economic Reality
https://www.bloomberg.com/opinion/articles/2021-04-13/consumer-price-index-cpi-history-is-surprisingly-political