So its even more important for public to see the evidence. Otherwise it feels like private vendetta most likely because Kaspersky is Russian (you know, our current Administration doesn't like Russians much) who actually build his empire on fighting Russian Government-funded cyberspying (claims Wikipedia).
I'm sure if Kaspersky sells tons of software on US soil, and most likely pay taxes on US soil, then they will sue and have a solid case against the US Government on discriminatory basis; unless of course said smoking gun will be made public. Otherwise it feels guilty until proven innocent (if given chance). Welcome to Russia, err. I mean: America.
Edit: if this falls thru, we have a very dangerous precedence; until now, politicians were taking money and lobbying for/against certain rules to help certain businesses to gain competitive edge. Now we have 2 Senators who happen to have "smoking gun" from "anonymous sources" (I presume) that could pretty much shut the whole company down. Whether Russian or American, irrelevant.