Ukrainian security authorities said on Tuesday they had uncovered Russian attack plans against President Volodymyr Zelensky and other politicians. The Ukrainian secret service SBU said that two officers from the Ukrainian state security department responsible for the president’s personal protection had been detained in connection with possible attacks. They are said to have provided the Russian domestic intelligence service FSB with information in return for money and were supposed to have taken part in the attack themselves. “One of the tasks of the FSB network was to find assassins among the…