More Starbucks' closures could be coming. Is it about safety or union busting?

When Starbucks announced last week that that it was closing 16 stores due to what the company described as safety concerns, labor organizers at Starbucks Workers United said they spied a union-busting strategy playing out.

Since June, the National Labor Relations Board says unions have sprung up at 151 Starbucks stores across the country.

With the closure announcement, the conflict between unionized locations and Starbucks corporate has entered a new phase.

Soundside spoke to Seattle Times business reporter Renata Geraldo about where labor negotiations currently stand, and what these branch closures could mean for other locations.