'Documents uncovered by our investigation so far point to the very troubling possibility that StemExpress may have violated federal law,' Rep. Marshal Blackburn said.
The organization, which purchases aborted babies bodies from Planned Parenthood, grew by 1,316 percent in three years, according to a business authority.
The majority of witnesses at Wednesday's hearing agreed that there is more than enough material to substantiate a full-blown federal grand jury investigation into Planned Parenthood.