The head of the FBI is again defending decisions he made before the 2016 election.

FOX's Rachel Sutherland reports from Washington:

FBI Director James Comey told the Senate Judiciary Committee the agency reopened the Hillary Clinton email case last fall because it was discovered some her emails had been forwarded to Anthony Weiner's laptop and it was possible those emails could have revealed her intent:

(Comey) "This has been one of the world's most painful experiences. I would make the same decision. I would not conceal that on October 28th, from the Congress."

Comey described the conundrum of keeping quiet or telling Congress as choosing between "really bad and catastrophic."

In Washington, Rachel Sutherland, FOX News.

Follow Rachel Sutherland on Twitter: @SutherlandFOX