WASHINGTON—U.S. officials have put off until at least Monday
plans to file charges against Dzhokhar Tsarnaev, the surviving
suspect in the Boston Marathon bombings, a U.S. official said.
Earlier, officials had said they were preparing for a possible
filing of charges Sunday but cautioned that the timing was fluid
because of Mr. Tsarnaev's medical issues. Officials said the
19-year-old was drifting in and out of consciousness at a
hospital after being shot in the throat during a confrontation
with authorities early Friday morning. It wasn't clear who had
fired the shot.  His brother, Tamerlan Tsarnaev, 26, was the
other bomber last Monday, authorities say.  A spokeswoman for
the U.S. attorney's office in Massachusetts said there would be
"no press conference or further statement" from the office
Sunday on the bombing investigation.  Photos: Camaraderie After
Boston Chaos   Timeline: Boston Bombings and the Search for
Suspects  Map: Boston Area  Track locations of key incidents in
the search for the suspects.