Hercules, I have been thinking of your dh's freind since you posted it the other night, and referred to it lower down this thread.
DP, asian, said that yesterday he was unable to feel himself in any public space because he felt totally self-conscious under so much overt and covert scrutiny. Then late last night, walking home close to one of the affected tube stations, his heart dropped to the floor with fear - he was the only person on the street, and a police car sped along the road and came to a stop right by him. In fact, they were stopping to take a radio call, he thinks, as they sped off in the opposite direction. But still, life has changed.
I have said throughout this thread that I understand people feeling a moment of fear, and have avoided automatically linking it with racism. If DP and DS were in a world where all of a sudden, their type was the 'profile' for a criminal, it would be 'one of those things', but I think the reason the currency is so high is because they are not entering this phase from a neutral position - they already have an experience of DS being called 'chocolate face', etc etc, or like Slink's family who had a dead pig thrown through their window. So it's harder to hear that, and perhaps it's harder to feel under public scrutiny if your previous experience leads you to believe that you are already unwelcome, alientated and misunderstood.
By the end of the day yesterday afternon, I felt that this thread was getting closer to some clarity and understanding, and hope we can listen, listen to each otehr getting emotional about emotional issues, but not take things too personally.