The net is widening. Authorities have charged two more men and detained three others in connection with the March 22 airport and subway suicide bombings that killed 32 in Brussels. Belgians have now charged 21 people in those attacks and the Nov. 13 Paris terror that claimed 130. Though it’s unclear what prompted the newest charges, the two men reportedly have been linked to an apartment in the Etterbeek neighborhood said to have housed two of the subway bombers. One expert says the growing suspect list indicates a terror “supercell” that may remain capable of further violence.