Genealogy testing is inherently creepy. After spitting into a vial and sending it off, your saliva's final resting place can be a mystery (unless it's accidentally sent to another customer). That's why lawmakers want to protect your bodily fluids and the data they provide. Rep. Dave Loebsack (D-Iowa) and Rep. Frank Pallone (D-N.J.) wrote a letter asking four major genetic testing companies to clarify their privacy and security policies, and they shared the letter with Stat. The four companies that got a letter — 23andMe, AncestryDNA, Family Tree DNA, and National Geographic Geno — haven't been embroiled in any scandals.