"Having said that, we now assess that North Korea will seek to retain its WMD (weapons of mass destruction) capabilities and is unlikely to completely give up its nuclear weapons and production capability because its leaders ultimately view nuclear weapons as critical to regime survival", Coats said in an opening statement.
The report acknowledge that North Korea has been committed to the project but stopped short of confirming that enough progress had been made citing inconsistencies.
Bolton reiterated coordination with Beijing related to North Korea sanctions, saying that China has also said that it supports exerting pressure to achieve denuclearization.
"Therefore, the second summit's agreement must include the point that complete denuclearization of North Korea, along with security guarantees for the North, are the ultimate objective both sides are seeking", the expert said.
The summit last June between North Korean leader Kim Jong Un and US President Donald Trump had brought about a dramatic turn in relations that had been "the most hostile on earth" and contributed to ensuring peace and security on the divided peninsula, Han said.
Yet speculation emerged that the Trump administration might have shifted its focus away from denuclearization to the elimination of intercontinental ballistic missiles as a more realistic accomplishment.
Coats also highlighted cybersecurity threats. "In addition, North Korea has for years underscored its commitment to nuclear arms, including through an order in 2018 to mass-produce weapons and an earlier law - and constitutional change - affirming the country's nuclear status", it said.
"The post-World War Two global system is coming under increasing strain amid continuing cyber and WMD proliferation threats, competition in space and regional conflicts", Coats said, using the acronym for weapons of mass destruction.
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During our coverage of the investigation, we heard from friends and family members seeking help in finding their loved one. Sentencing is expected to begin Monday, Feb. 4, at which point victim impact statements will be filed with the court.
Though social media companies such as Facebook, Twitter and Google failed to recognize and respond to Russian efforts in the 2016 election, since then the companies have been more cooperative and willing to act on tips shared by USA intelligence agencies, FBI Director Christopher Wray told the lawmakers.
The officials painted a multifaceted picture of the threat posed by China, as they were questioned repeatedly by senators about the No 2 world economy's business practices as well as its growing worldwide influence.
"The Chinese counter-intelligence threat is more deep, more diverse, more vexing, more challenging, more comprehensive and more concerning than any counterintelligence threat I can think of", FBI Director Christopher Wray said. Many lawmakers have blasted technology companies over the past two years for doing too little to fight the spread of false news reports and other misinformation.
Officials also warned, as they did previous year, about Russia's intention to interfere with the US political system via "information warfare" waged largely on social media, which stokes social and political tensions to divide Americans.
"We expect our adversaries and strategic competitors to refine their capabilities and add new tactics as they learn from each other's experiences, suggesting the threat landscape could look very different in 2020 and future elections".
The Senate Intelligence Committee is one of several congressional panels, along with Special Counsel Robert Mueller, investigating whether there were any connections between Trump's 2016 and Russian efforts to influence the election.
The intelligence assessment, which is provided annually to Congress, made no mention of a crisis at the U.S. -Mexico border, which Trump has asserted as the basis for his demand that Congress finance a border wall.
Coats declined to respond when Sen. The Democratic National Committee circulated a memo Tuesday evening noting multiple press accounts of how the intelligence chiefs "contradicted" the president.