"Davis Bacon requirements on federal construction projects in effect means only union labor. What is the racial breakdown on the city’s construction unions membership? I know it’s asking an awful lot for a “reporter” to consider such a question as it requires having some “actual knowledge” of how the world works."
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Hahahaha...bold and italics on me, but it was oh so pertinent to the issue.
He's a journalist so common sense or knowledge of the working world is not required and in fact discouraged.
It is lost on the libs that a construction contract is supposed to get a job done promptly, safely, under budget and using best practices and duly qualified tradesmen and engineers.
And the white woman at the meeting is too busy tearing into that rubber chicken to pay much mind to the presenter, 555..... 
But that actually is the issue.
At least it was in Boston during the “Big Dig” taxpayer funded boondoggle that went billions and years over budget and deadlines.
Along with the general corruption and fraud that exploded the costs, you had ridiculously overpaid union labor that was still overwhelmingly white in large part, yes, as a legacy of racism combined with the nepotism by which you had to know, but more likely be related to, someone in the union to get into the union.
Lots of low-skill black men who actually lived in Boston could and should have been taken into apprenticeship and entry-level positions by which they could have learned real skills and got on the wrung to continued, mid-wage employment.
But that didn’t happen. The featherbedding of longtime union nests left those Bostonians and their families who should have gained from the flow of federal tax dollars into Boston out in the cold.