Venezuela Rattles Saber in Heated Border Row with Guyana
- Venezuela threatens to take over resource-rich region of Guyana
- Tensions escalating between Venezuela and Guyana over territorial dispute
- Venezuela open to high-level talks to resolve standoff; Guyana yet to respond
- Dispute has long history, latest developments show rising tensions
- Interview with expert Carolina Jiménez Sandoval on dispute's background and new developments