RUSSIA has secretly installed nuclear missiles in Venezuela a US politician has sensationally claimed in a chilling echo of the Cuban Missile Crisis. Republican congressman Mario Diaz-Balart said he believes Vladimir Putin's hidden nukes are now a direct threat to the "national security" of the United States. He made his astonishing allegations hours after Venezuela was pushed to the brink of civil war when opposition leader Juan Guaido called for rival Nicolas Maduro to be ousted from office. Diaz-Balart told Fox News if Maduro stays in power it could be "an open door for the Russians and for the Chinese...