The chairman of the U.S. House of Representatives intelligence committee on Wednesday warned of a "serious national security threat" and urged the White House to declassify all related information.The unusual statement by Mike Turner related to information about Russian efforts to place a nuclear weapon in space for possible use against satellites, ABC News reported, citing sources familiar with the intelligence.Responding to the move by the Republican head of the committee, White House national security adviser Jake Sullivan said he was surprised by the disclosure as his briefing with cong…READ FULL ARTICLE