How U.S. fertility clinics are caught in the middle of U.S.-China tensions

Tensions between China and the United States are on the rise as the two countries cancel visas, close each other's consulates and accuse each other of mishandling the Covid-19 pandemic. Now, the U.S. government has identified a new, unexpected threat from the Chinese: Fertility clinics. CNBC's Eamon Javers joins "Squawk Box" with the results of a CNBC investigation that impacts some of the most intimate decisions a family can make.