In 2002 scientists such as Dr. Luis N. Irwin found evidence of life venus. why has nothing been done?

well as stated in the question Dr. Luis N. Irwin aswell as other scientists discovered evidence that there is life floating about in the venusian clouds but 6 yrs later no probes have been sent to investigate and NASA hasn't said anything about it. Are they ignoring it or do they a plan to look see or anything?