Europe Day: Celebrations stay humdrum as all eyes on crucial EU electionWorld Food Prize goes to 2 who helped protect vital seeds in an Arctic Circle vaultWalkers confirms major change to popular crispsMan United vs Arsenal: Why Arteta's success could be a blueprint for UnitedPuerto Rico declares state of emergency as persistent rains unleash heavy flooding and landslidesArgentina labor unions' 1The Taliban warn journalists, experts against cooperating with Afghanistan International TVPoland is strengthening its border with Belarus to deter illegal migrationReal Madrid 2Cheap and common supplement could cure colds two days quicker than normal, study finds