Russia warned FBI about Tsarnaev brothers but name was misspelled
Tsarnaev name was misspelled in a security database designed to monitor suspicious individuals
The Russian government alerted the FBI to suspicions about one of two alleged Boston bombers, but US authorities failed to arrest him because of a spelling mistake.
According to a congressional report for the US House Homeland Security Committee seen by NBC News, Russia's intelligence agency warned US agents about Tamerlan Tsarnaev's links with militant Islamists as early as March 2011.
The FBI opened an investigation, Tsarnaev was interviewed in person and a memo was sent to the US Customs and Border Protection database - TECS - that would trigger an alert every time Tsarnaev left or re-entered the US.
The investigation was closed in June 2011, after the FBI found "no links to terrorism", NBC quotes the report as saying.
In September 2011, Russia's FSB sent a cable to the CIA restating their initial warning, and a second note on Tsarnaev was entered on the TECS system, but his name was misspelled "Tsarnayev".
The note called for his "mandatory" arrest if "encountered entering of exiting the US", warning he could be armed and was dangerous.
On January 2012, Tsarnaev travelled to Moscow en route to Dagestan, where he received terror training for six months, but was not pulled out for a secondary search because his case was not considered high priority among the 100 other names on a "Hot List" of people traveling through JFK that day.
Upon his return in July, Tsarnaev slipped through security at JFK airport in New York because of the misspelling of his name, which failed to trigger an alert, according to the report.
His initial TECS note had expired, but the second, more urgent note, suggesting he could be armed and was dangerous, had not, NBC quotes familiar sources with the report as saying.
Tamerlan Tsarnaev was killed during a shootout with police on 19 April in Watertown, Massachusetts, and his brother Dzhokhar was discovered hiding in a boat later the same day in the wake of the Boston marathon bombings, where three people were killed and 230 were injured.
Dzhokhar Tsarnaev now faces terrorism charges in connection with the bombing that carry a possible death sentence. He has pleaded not guilty.
- 1 Game of Thrones season 6: Jon Snow theorists believe Ned Stark's son may have a twin sister
- 2 Artist takes LSD, draws herself over different stages of the 9-hour trip to show its effects
- 4 iPhone 6s camera: features to include 4K video camera and flash for selfies
- 5 A pint of water every day is the key to losing weight, scientists say
Miley Cyrus address Robin Thicke VMA controversy: ‘He wanted me as naked as possible, but I got the heat because I’m a woman’
Most expensive city to live in for expatriates: Luanda, Angola takes number one spot with Hong Kong and Zurich in top three
If Surrey were Syria: Social experiment shows what it's like to live under siege
Irish tourist filmed fighting with shopkeepers in Turkey says they 'messed with the wrong man'
House of Lords: Outcry as donors, fixers and MPs caught up in expenses scandal get peerages
Dresden riots: Protesters in Germany attack refugee buses shouting 'foreigners out'
France train shooting: US soldiers speak of the moment they stopped gunman and 'beat him until he was unconscious'
Labour leadership: Jeremy Corbyn accused of 'deluding' young supporters with 'claptrap'
'Women only' train carriages: Jeremy Corbyn unveils radical move to tackle public harassment
Black holes are a passage to another universe, says Stephen Hawking
Iain Duncan Smith 'should resign over disability benefit death figures', says Jeremy Corbyn
£26000 - £29000 per annum: Recruitment Genius: The Product Development departm...
£19000 per annum: Recruitment Genius: This hull based charity providing except...
£9464 - £10396 per annum: Recruitment Genius: The successful applicant will ne...
£32000 - £40000 per annum: Recruitment Genius: With extensive experience and a...