Wait till your infrastructure dies because the FBI or some other three letter agency is poking around in your systems trying to install a backdoor or exploit.
Seems like you missed the news on that.
Last May, as part of Glenn Greenwald's book, the NSA's process of supply-chain interdiction was exposed. They would intercept shipments of Cisco hardware, install the back doors, replace factory seals, and put it back into the shipping chain. One story. And another.
Cisco's response was somewhat curious. It wasn't outrage. It wasn't a lawsuit. It wasn't an emotional response. It was a calm, publicly released letter addressed to President Obama about trust and confidence. Nowhere in their public statements do they say anything about surprise, or about lack of knowledge that it was happening, or that they were not complicit.
Nope, it is an open letter asking the government to restore trust and confidence. It reads like the company was asking "please don't let these secrets go public again."
It is widely believed -- and documented -- that government agencies have already inserted various backdoors into Cisco corporate security products. It is also likely that the companies know full well about their products being intercepted and modified by the government, and that Cisco and others are helping the various agencies by tagging the products to be modified.