The Confrontation Clause in the Sixth Amendment to the U.S. Constitution guarantees that, "in all criminal prosecutions, the accused shall enjoy the right...to be confronted with the witnesses against him." The courts have read this to mean that criminal defendants have the right to fully confront any evidence brought against them.
The U.S. Senate's Commerce Committee has passed a measure that would change the liability rules for internet platforms that host certain exploitive materials. States and victims would be able to sue internet hosts, social media companies and advertising platforms for negligently allowing sex trafficking. It also contains a mechanism for holding companies criminally responsible.
In 2004, the American Psychological Association said that there's "little evidence that polygraph tests can accurately detect lies." There simply isn't sufficient proof that the physiological responses measured by the so-called "lie detector" machine are actually caused by lying.