A seventh foreign national has been arrested in Venezuela on charges of conspiracy over what Caracas claims was a plot to assassinate President Nicolás Maduro, Interior Minister Diosdado Cabello said on Tuesday. The US citizen was “captured here in Caracas while he was taking photos of electrical systems, oil apparatus and military facilities,” Cabello told parliament. The suspect, whom Cabello did not identify, was part of the “plan against Venezuela,” the minister said. Last week, six foreign nationals – three Spanish, two US and one Czech national – were arrested in Venezuela on suspicion o…