James Comey defends Clinton email decision but warns of threat from Russia

FBI director James Comey on Wednesday described Russia as “the greatest threat” to US democracy, but defended his decision to keep secret an investigation into the Trump campaign’s links to Moscow despite revealing details of an inquiry into Hillary Clinton’s handling of classified emails.Giving evidence to a hearing of the Senate judiciary committee, Comey offered his most extensive explanation to date of the thinking behind his different approaches to the two investigat