The Obama administration has retained sanctions but opened the door to dialogue. But in its foreign policy, Myanmar has been eclipsed by the wars in Iraq and Afghanistan, Iran's nuclear program and turmoil in the Middle East, among other issues.
Lawmakers and human-rights advocates have long pressed for an envoy for Myanmar to give it greater attention. After abandoning America's two-decade-long policy of isolating Myanmar, the administration has periodically sent senior officials to meet with Suu Kyi and the government, without making headway. Washington says it remains open to dialogue.
Agreeing to talk has at least removed an obstacle to U.S. engagement with the Association of Southeast Asian Nations, or ASEAN, which has become a focus for deepening American trade and security ties in the region, countering the rising power of China. In a shift, ASEAN also has voiced some criticism of recalcitrant member Myanmar and urged reform.
T. Kumar of Amnesty International USA said that regional diplomacy was the best way forward, although Myanmar has so far proved deft in balancing its ties with China and India and resisting international pressure.
Steinberg said Myanmar's chief ally China in particular would view U.S. involvement with suspicion and probably would only weigh in and ask for modest reform if Myanmar faced a mass uprising or border fighting that threatened stability.
"Working with ASEAN is the only route right now," he said.
There is a glimmer of an opening. After five decades of military rule, Myanmar recently has seen some political changes, albeit superficial ones. Having rejected an election victory by Suu Kyi's party in 1990, the military organized polls last year that were viewed by most of the international community as unfair. They ushered in what they called a civilian government, but it still is dominated by the military.
It has freed Suu Kyi from years of house arrest, although it outlawed her party.
Some European nations have now joined ASEAN in calling for lifting sanctions, even as rights groups, exiled Myanmar activists and some U.S. lawmakers seek to toughen them.