My job was to run through the cables of Allied news agencies: Reuters, UP, AP, Central News Agency of China and TASS. These cables, sent out in Morse code, had been intercepted by Malay radio operators. Radio signals were not clear in the later afternoons and early evenings, and because reception was poor, many words were garbled or lost. I had to decipher them and fill in the missing bits, guided by the context, as in a word puzzle. The cables then had to be collated under the various battle fronts and sent from the top floor of Cathay Building to the floor below, where they would be revamped for broadcasting.
http://content.time.com/time/world/article/0,8599,2056737-3,00.html
to put it simply in 1 sentence. LKY deciphered the missing English words of the cables for the Japanese military intelligence code-breaking side. so his works for the Japanese invaders made him a traitor ?
the Allies and the Axis news agencies were an important source of transmitting information to its forces, organizations and members all over the world during ww2. the Allies and the Axis made great efforts to intercept, decipher and crack the codes of the enemies. the USA had successfully cracked the codes that the Japanese forces used to transmit messages numerous times, the Japanese had little success against the USA's codes, and that was a key reason why the USA defeated Japan in ww2. our war hero, Force 136 Lim Bo Seng hid secret codes in the form of ordinary messages in the newspapers to carry messages to its agents in Malaya.