Dzhokhar Tsarnaev remained hospitalized Saturday after being wounded in a firefight with police Friday. His brother was killed earlier.
U.S. officials say a special interrogation team for high-value suspects will question Tsarnaev without reading him his Miranda rights, invoking a rare public safety exception triggered by the need to protect the public from immediate danger.
ACLU Executive Director Anthony Romero says the exception applies only when there's a continued threat to public safety and is "not an open-ended exception" to the Miranda rule.
Twin explosions near the Boston Marathon finish line Monday killed three people and wounded more than 180. Tsarnaev's father calls him a "true angel."