Stories written by

Lauren Kirchner

Thousands were convicted in criminal cases in New York, using a DNA technique that is now disputed

New York City’s crime lab has been a pioneer nationally in analysing especially difficult DNA samples. But there are now questions about accuracy.

Lauren Kirchner
· Sep 10, 2017 · 11:30 pm
Investigation: Leading US tech companies are helping White extremist sites make money

Firms such as PayPal and Amazon may have failed to establish the monitoring processes needed to weed out hate sites.

Julia Angwin,
,
Lauren Kirchner
,
Jeff Larson
&
Madeleine Varner, ProPublica
· Aug 21, 2017 · 07:30 pm
Stop-and-spit: In some US cities, police are collecting the DNA of even those not charged with crime

Police in Florida and other states are building up private DNA databases, in part by collecting voluntary samples even from those not suspected of a crime.

Lauren Kirchner
· Sep 14, 2016 · 11:30 pm

What’s the evidence that mass surveillance works? Not much

In the wake of Paris, officials are again pointing to the need for mass surveillance to take down terrorists. Here’s what we know about how well it works.

Lauren Kirchner
· Nov 20, 2015 · 08:30 pm