It's been a slow climb-higher in USD/JPY over the past three weeks and from the weekly chart, there remains a tonality shift ever since the dual intervention in late-July. So, it would be far too early to assume that the threat of sell-offs and unwind is completely gone and as the pair re-approaches the 160.00 handle, the very real question is whether or not policymakers will want to burn the dry powder to defend a lower-high.