Unp

"We believe that Vena may be uniquely positioned to instill a strong operating culture at UNP and position the company to capitalize on the volume growth opportunities available throughout its network," BMO's Fadi Chamoun said in a note.

"Given the ongoing challenges at UNP, a change will likely be viewed favorably," Wells Fargo Analyst Allison Poliniak-Cusic said.

But the National Protection Unit, known as UNP in Spanish, offered little.

The UNP is a pillar of that establishment.

Alberto Yepes, a leading rights activist who assists victims of extrajudicial killings by Colombia’s military, is certain the UNP is being used to spy on him.