18:00Six O'Clock News08/09/2020 Brexit agreement change could 'break international law'BBC Radio 4 Duration: 30 minutes Tue 8th Sep 2020, 18:00 on BBC Radio 4 FMAvailable for over a yearListen nowGovt admits plan to modify withdrawal deal would breach law in a "very limited way".GenresNewsBrandSix O'Clock News Source: BBC Online