. >> reporter: nina del rio, vice chairman at sotheby's auction house, has handled many high-patrol de-sessionsure control over their assets might be key to many museums' survival. but don't expect a fire sale. >> i've not seen anybody so far say, oh, my god, we have to sell everything, you know, life is going to be over if we don't. i've seen quite the opposite. the stewards of these institutions doing the thoughtful, hard, and good work to demonstrate that they're making, you know, decisions that are the right ones for their particular institution. >> reporter: and even though he doesn't think the bma will need to take advantage of the rule change, bedford says he supports it in the abstract. >> what is more sacred? a set of values that we have collectively determined or the vitality, relevance, and core mission and vision of institutions s ts to serve the publics? i think this moment is telling us which is more important. >> reporter: which is? >> serving our publics, being vital, relevant, keeping our doors open. >> reporter: without its patrons, even the best museum is really just a vault.