Any kill switch capability that is built in will simply become another vector for attack—in this case an attack that overrides the core competency of the Internet which is massive redundancy in case any one section fails.
It is almost a certainty that such a capability will be exploited.
how about a guy at the border unplugging the fiber optic cable? I assume it can already be disconnected somewhere physically; all this does is authorize the government to do it.
and if there's an invading, the US military will probably be operating on private property without permission too. But I think its quite clear that's ok in such a situation.
It is almost a certainty that such a capability will be exploited.