Back in the day, when the then Bureau of Radiological Health was a separate entity in FDA, the biological sciences research unit was hurting from a lack of slots to bring new people on board. We stumbled on the visiting scientist program which could be used to bring foreign nationals to the U.S. if they had needed skill sets, but for a limited time. We figured we'd deal with keeping such people on board "later." We used this “ruse” to bring Dr. Przemyslaw Czerski on board to work on microwave biological effects and I remember how pleased we were at the time to finagle a slot for a world-class scientist for the one-year appointment and then worked the system to bring Dr. Czerski on board permanently. So, we tried the same approach with Janusz, who was already widely known for his work on the effects of X-ray and UV radiation. And our batting average was one-thousand. If you've read the comments by others, you will gather that Janusz epitomized the collegial work ethic. He simply never failed to give of himself to help a colleague. In addition to the daily input he provided to the research operation, FDA hugely benefited from his extensive contacts in Europe in 1986 when the Chernobyl nuclear power plant meltdown occurred in the Ukraine. We had access to the raw data on where that cloud was going and what isotopes it contained, which was really good to know if you wanted to figure out what food animals and what crops were going to be affected in what was (and is) the breadbasket of Europe. Through the changes over the years with the merger of the radiological health and medical devices program, Janusz worked steadfastly to contribute in whatever way he could. Because he could, he even joined in the effort of NCTR and CFSAN to study the effects of alpha hydroxy acids in potentiating solar UV damage, essentially a cosmetics problem. It has been many years since I've had the opportunity to sit with Janusz and just talk, but I still remember that I had to really pay attention when he started with "Now, Alan..." We've all lost a great scientist and a good person. Alan Andersen Retired FDA