These people were attending a memorial service under the Henry-Austin-designed Egyptian Revival entrance gate to New Haven's Grove Street Cemetery for the men from Sierra Leone who won their freedom as a result of the Amistad incident in 1839-1840.
Also attending was a presidential delegation from Sierra Leone. Speakers included the Director of the Gilder Lehrman Center at Yale, the Vice-president of Sierra Leone and a beautiful Mendi singer/shaman.
The Vice-president said that the government of Sierra Leone should return and commemorate the freed men of the Amistad every year. Because, he said, it was not the Portuguese who went up into the hills and captured these men. "We did it."
This was shot with a Pentax Optio W20 which works great for surreptitious grabs because there is no mirror slap as with (D)SLRs, you can turn all the sounds off, and unlike my D70 which finds focus with a fairly bright white light, the Pentax uses a barely perceptible red light (which I think the lady on the left spotted).