Two college friends of the Boston Marathon bomber were sentenced to prison on Friday for removing a backpack containing empty fireworks shells from Dzhokhar Tsarnaev's dorm room amid a massive manhunt three days after the deadly 2013 attack.
Hackers broke into U.S. government computers, possibly compromising the personal data of 4 million current and former federal employees, and investigators were probing whether the culprits were based in China, U.S. officials said on Thursday.
A friend of the Boston Marathon bomber who admitted to obstructing the investigation into the deadly 2013 blast, one of the highest-visibility attacks on U.S. soil since Sept. 11, 2001, is set to be sentenced on Tuesday.
At 3:59 p.m. EDT on Sunday, the National Security Agency and telecommunications companies will begin mothballing a once-secret system that collected Americans' bulk telephone records, shutting down computers and sealing off warehouses of digital data.
