LONDON—Julian Assange put life in risk when he released a ten years in the past 1000’s of classified paperwork related to the Iraq and Afghanistan wars, a law firm representing the U.S. govt explained at the opening working day of a courtroom hearing to ascertain whether the WikiLeaks founder need to be extradited to the U.S. to stand demo.

Mr. Assange is required in the U.S. on several charges of breaching espionage rules and conspiring to hack a military services personal computer. The charges had been laid out in an eighteen-count indictment the Justice Department issued…