How well do you know your neighbour? Can you tell me what they do, their routines or activities, or when they became part of your community? I may press you further. Do you know where they come from, and is anyone linked to them? Or what do they stand up for? One would argue that this might be an overreach or being too nosy.
However, the truth and reality of our times are that knowing that person and that person knowing another, or simply the concept of community policing (nyumba kumi), is now vital to the very existence and security of our society, even though it has not been fully adopted or strengthened in the fight against terrorism.