GBP/USD extended session highs to $1.6465, above earlier higs on $1.6461. But resistance in the $1.6465/85 area capped the rise. A break above opens a move toward $1.6500 and then - to a stronger offers at $1.6520 ($1.6518 May 11 high) and $1.6540/50 ($1.6544 May 5 high).