Caution grips Asian shares before Fed minutes, seminar

SYDNEY (Reuters) - Asian shares flatlined on Wednesday as worries about global recession and endless trade wars vied with hopes for a lot more monetary and fiscal stimulus to keep growth going.Much depends on what the Federal Reserve does with U.S. interest rates, making markets hyper-sensitive to the minutes - due later on Wednesday - of its last meeting. Traders are also awaiting the central bank's annual Jackson Hole seminar later this week and a Group of Seven summit this weekend for clues..