Quote from cstfx:
technical analysis is more relevant in currency trading than I think any other trading instrument, whether it be 5 min, 15, 4 hr, or longer. You cannot hope to be successful without the use of TA trading currencies.
FA is useful only for the knee jerk reactions or policy changes. Concerning knee jerk, if NFA is weak/poor and causes adverse effect, it is usually short lived as TA is the underlying strength in price movements. Policy change, on the other hand, can't be ignored.