The minutes released from one of the Federal Reserve's policy meeting in 2015 showed the uncertainty central bank officials had about the strength of the U.S. economy in 2015. Officials were debating when to start raising short-term interest rates; while some policymakers wanted to start in June, others wanted to delay until later in the year or even 2016. The tempered inflation rate, along with a strengthening U.S. dollar, were pushing more Fed officials into the waiting camp.

1. Why would the Fed want to raise short term interest rates?
2. Why would a stronger US dollar make some Fed officials want to wait to raise interest rates?