TSA: The Nation's #1 Carrier of Foot Fungus?

I have really hated having to take off my shoes every time I take a flight nowadays. The TSA actually has the unmitigated gall to say it is "voluntary", but try to get through security without doing it. Voluntary, my royal American a$$!

I always thought it was merely uncomfortable, but now it looks like it is unhygenic as well. Bleah!