Offshoring has become more than call centers and IT. VZ has been rapidly moving "knowledge" workers to places like Ireland and India. Those people are still Verizon management employees.
Ignore your tenure and experience, honestly ask yourself, could you do your job anywhere in the world. Unless you meet with customers, physically maintain the network, or are subject to regulatory restrictions, why couldn't it be done somewhere else. There is a major knowledge transfer happening and the company is willing to bear the short term issues of knowledge loss to rebuild and "figure it out".
all of the reasons you think you are safe has been debated and well though out.
- in the rooms