United States Markit PMI Composite up to 54.2 in January from previous 53.5

One question is flying over the city of New York today: Is the United States losing the currency war? Journalists are citing news on Caterpillar $CAT which reported lower earnings than expected and cut its forecast for 2015 due to the strong US dollar; Dupont $DD, Intel $INTL and Apple $AAPL are concerned on the same issue.