Nordelta is one of Argentina’s most famous gated communities. There, 45,000 wealthy residents enjoy manicured lawns, picturesque views of lakes and streams and peace and quiet. But for some of them, that peace has been shattered by a class of furrier neighbors: capybaras. The world’s largest rodent is native to Argentina, and their population in Nordelta has exploded in recent years. Hosts Carolyn Beeler and Marco Werman have more.