Planned Parenthood, whose Ann Arbor location is shown on September 7, 2014, operates 820 health centers in the US.
What does Planned Parenthood do?
01:36 - Source: CNN

Story highlights

The use of human fetal tissue has been a political flashpoint since the 1990s

Grassley's 2016 report claimed US agencies had failed to monitor the industry

CNN  — 

The Justice Department is looking into Planned Parenthood’s practices related to human fetal tissue, according to a letter obtained by CNN on Thursday.