How much leverage does the u.s. have over Yemen?

The youth pro-democracy protestors are incredible and the key to victory will in the hands of the people. Although being in washington and working tirelessly to make things happen the real action os not in Washington. Yes, we work so hrd convince the US to act fast because Saleh is the reasn behind AQAP so by supporting the prodemocracy movements it would be acting in its self-interests BUT if it werent for the protestors this wouldnt be happening. love love love you guys!