The freed Reuters reporters, U Wa Lone, left, and U Kyaw Soe Oo, in Yangon, Myanmar, on Tuesday.Credit...Pool photo BANGKOK — The biggest obstacle to releasing two imprisoned Reuters reporters in Myanmar was not the country’s military, diplomats and others say, but its de facto civilian leader: Daw Aung San Suu Kyi, a Nobel laureate and former political prisoner herself who once declared, “Please