Pence discovery raises fresh questions over US handling of classified papers

Biden, Trump and Pence cases prompt calls to tighten government procedures as Republican congressman says process is broken'

The discovery of classified documents at the home of former US vice-president Mike Pence, following similar incidents involving Joe Biden and Donald Trump, is bringing new scrutiny to government procedures for handling and securing its most delicate secrets.

The justice department and FBI are looking into how about a dozen classified-marked papers came to be found last week in an unsecure location at Pence's Indiana residence, two years after he and Trump left office.