His main achievement as Governor was to arrange for the removal of the requirement of a "security clearance" to enter or leave Guam, by persuading Kennedy to sign an Executive Order (No.11045), rescinding the one put in place during 1941 by President Franklin D. Roosevelt. The old (war-time) travel restrictions required that all civilians wishing to visit Guam needed to obtain approval from a senior US Navy officer based in Washington, D.C.; this often took weeks to obtain. This was obviously an obstacle to development, especially in the area of tourism, and its removal greatly benefited the economy of the territory.