Looks to me like Buzzfeed took their cue from CNN...
CNN Bombshell
CNN says it is not reporting the details of the memos because it has not verified them. It adds that while the information was circulating for months, the intelligence community has now “checked out the former British intelligence operative and his vast network throughout Europe and find him and his sources to be credible enough” to use the information in briefings. However, intelligence officials also found the information sensitive enough to only provide it to Trump, President Obama, and the eight chairs and ranking members of the House and Senate intelligence committees, CNN says. Again, there’s no indication so far as to whether the intelligence community believes the British operative’s reports to be accurate. Even if the operative’s sources are genuine, for example, they might be trying to sow misinformation, which the unclassified version of the report on alleged Russian hacking noted was a favorite Kremlin tactic.
Shortly after CNN’s report, BuzzFeed posted what it says is the full 35-page memo on which the shorter memo delivered to Trump and others is based. BuzzFeed said it had not verified the report and that it contained some clear errors.
CNN says it is not reporting the details of the memos because it has not verified them. It adds that while the information was circulating for months, the intelligence community has now “checked out the former British intelligence operative and his vast network throughout Europe and find him and his sources to be credible enough” to use the information in briefings.A commenter over at Instapundit pointed out that this "British" intelligence operative referred to the "World Soccer Tournament."
What "British" person uses the word "Soccer"?
In England they call it "Football."