WATERTOWN, Mass. - UPDATE SUNDAY 8:30am:
As the lone surviving suspect in the Boston Marathon bombing lay hospitalized under heavy guard, the American Civil Liberties Union and a federal public defender raised concerns about investigators' plan to question 19-year-old Dzhokhar Tsarnaev without reading him his Miranda rights.
UPDATE SATURDAY 6:58pm:
There was no immediate word on when Tsarnaev might be charged and what those charges would be. The twin bombings killed three people and wounded more than 180.
UPDATE SATURDAY 9:28am: