In the 1960s–1970s Semyonov worked abroad a lot as a reporter of the said editions (in France, Spain, Germany, Cuba, Japan, the USA, Latin America). His journalist activity was full of adventures, often dangerous ones – at one time he was in the taiga with tiger hunters, then at a polar station, and then he was at the Baikal-Amur Mainline construction and diamond pipe opening. He was constantly at the centre of the important politic events of those years – in Afghanistan, Francoist Spain, Chile, Cuba, Paraguay, tracing the Nazi, who sought cover from punishment, and Sicilian mafia leaders; taking part in the combatant operations of the Vietnamese and Laotian partisans.