"They investigated it thoroughly and did not find terrorist activity, domestic or foreign, " Mr. Carney said.
WSJ: Dzhokhar Tsarnaev Charged by U.S. Prosecutors in Boston Marathon Attack
Agents also interviewed Tsarnaev's family members, the FBI said, but did not detect terrorist activity.
We reaffirmed the shared commitment to defeat terrorist activity regardless of where it occurs.
WHITEHOUSE: President Obama Meets with Turkish Prime Minister Erdogan
It is the first time the EU has drawn up list of organisations accused of terrorist activity.
Mr Ahsan, a British-born poet and writer, denies being involved in terrorist activity.
Mr Trimble said the moratorium would continue until the secretary of state declared there was no longer any threat of terrorist activity.
Risk management experts say increased terrorist activity worldwide is damaging business confidence.
"There have been intelligence inputs about some terrorist activity, and therefore security has been tightened (at airports), " civil aviation spokesperson Moushmi Chakraborty told CNN.
"To compliment our more covert methods of fighting terrorism we must have a more visible presence to deter and prevent terrorist activity, " he said.
BBC: NEWS | UK | England | London | Rise in terror stop-and-searches
She also said the police's stop-and-search powers would be curbed and the effort to deport foreign nationals involved in terrorist activity would be increased.
The centrist daily Nezavisimaya Gazeta is concerned that the crisis in Mali and Algeria threatens to turn into a "surge of terrorist activity" in the whole region.
"Canada will not tolerate terrorist activity and we will not be used as a safe haven for terrorists or those who support terrorist activity, " he said in parliament.
"The threat is increased, and we've seen terrorist activity take on more of a global stance, " Paul Bassett, Aon's executive director of counterterrorism and political risk, told CNN.
Announcing the stepping up in use of the powers, Commander Rod Jarman said it would be a vital tactic to help it "disrupt, deter and prevent terrorist activity".
BBC: NEWS | UK | England | London | Rise in terror stop-and-searches
Saudi newspapers reported that 160 people who had been held for questioning about terrorist activity had been released, suggesting that the total number detained could be far higher.
Finally, the REAL ID bill would make it clear that members of a terrorist organization or group that "endorses or espouses terrorist activity" are inadmissible to the United States.
Clinton was being kept informed of any Y2K concerns, and was staying in touch with federal law enforcement agencies trying to predict and prevent possible New Year's Eve terrorist activity.
The report categorizes as "confirmed" any former detainee identified as involved in terrorist activity by a preponderance of evidence -- such as fingerprints, DNA, photo match or reliable or well-corroborated intelligence.
We have worked effectively together on a wide range of issues and Denmark, again, despite being a small country, is one that obviously has been concerned about terrorist activity within its borders.
WHITEHOUSE: President Obama Meets with Danish Prime Minister Rasmussen | The White House
He told the committee the police and security services could only obtain about 75% of the information they needed to help secure convictions and disrupt potential terrorist activity and this gap was "very dangerous".
So my hope is, is that over time what we're going to see is further clarity and further cooperation between all the parties and all peoples of goodwill in the region to eradiate terrorist activity, to eradicate the kind of violent extremism that we've seen.
WHITEHOUSE: President Obama and Prime Minister Singh Press Conference
"While DHS and FBI have no information regarding the timing, location or target of any planned attack, we believe it is prudent to raise the security awareness of our local law enforcement partners regarding the targets and tactics of previous terrorist activity, " the department said.
CNN: Stadiums, hotels attract 'terrorist interest,' feds say
The figures also show that the use by the Metropolitan Police of stop-and-search powers where there is a suspicion of terrorist-related activity has fallen by just under half.
One of Mr Anderson's key recommendations is that the government keep "under careful review" whether it should change the law to require more evidence that a suspect is involved in terrorist-related activity.
They say the expanded financial data would allow anti-terrorist agencies to better understand normal money-flow patterns so they can spot abnormal activity.
FORBES: To Bolster National Security, Treasury Wants More Red Tape
应用推荐