Recode's Kara Swisher discusses Theranos CEO Elizabeth Holmes' appearance at the AACC Conference to unveil a new blood testing device, the Uber China merger with rival Didi Chuxing and the Yahoo-Verizon deal.
Embattled Theranos CEO Elizabeth Holmes presents clinical data at the AACC Conference and unveils new technologies.
Theranos CEO Elizabeth Holmes tries to convince experts her company's controversial blood testing technology actually works at the AACC. CNBC's Meg Tirrell reports.
CNBC's Meg Tirrell reports on Theranos founder Elizabeth Holmes making her first public appearance since getting banned from operating a clinical lab.