CARACAS, Venezuela (AP) — A chief strategist of Venezuela's government-backed cryptocurrency is a former U.S. congressional intern who once organized protests against the same socialist administration he's now helping to circumvent U.S. financial sanctions.Gabriel Jimenez, 27, was catapulted to something of tech stardom in Venezuela last month when he stood alongside President Nicolas Maduro and two Russian businessmen on national TV signing a contract to position the petro, as the fledgling currency is known, among international investors."It's a company founded and led by young Venezuelan geniuses, boys and girls of Venezuela, who have one of the most technologically advanced blockchain...