On 16 June 1944 , British double agent `` Garbo '' was requested by his German controllers to give information on the sites and times of V-1 impacts , with similar requests made to the other German agents in Britain , `` Brutus '' and `` Tate '' .	<arg1> British double agent `` Garbo '' </arg1> <rel> was requested to give information on </rel> <arg2> the sites of V-1 impacts </arg2>	1