The glass skin of the condo tower going up near the museum “now reflects so much light that it is threatening artworks in the galleries, burning the plants in the center’s garden and blinding visitors with its glare. No one quite knows what to do. The condo developer and museum officials are at loggerheads. Fingers are being pointed. [Nasher architect Renzo] Piano is furious. The developer’s architect is aggrieved. The mayor is involved.”