Shes worried about the terrorists, because she's an officious asshat that cannot comprehend how a government can be effective internationally without being the 400lb gorilla in the room.
The vast majority of international terrorism comes from a simple interaction:
Powerful foriegn nation wants something from little, less powerful nation, uses one-sided politics and strongarm tactics to essentially pillage the little nation for everything the bigger nation wants.
This disenfranchises and pisses off the citizens of the little nation, and incentivizes them to become terrorists.
Throw hard handed "enforcement", like unmanned drone strikes killing people at weddings and birthday parties into the mix, and you have a downward spiral into madness.
Solution? DONT ENGAGE IN ONE SIDED, HEAVY HANDED POLITICS.
It really is just that simple!!
The world needs to quit the middle east cold turkey, wait 3 or so generations, then engage them fairly and honestly. The terrorism shit will be vastly reduced.
But of course, our leaders dont comprehend the concept of actual fairness, or of foriegn soveriegnty, and a number of other things, which is why internationally the US government is seen as a bunch of raving hyenas that the world would be better off without, which is why terrorists grow up like weeds.
Feinstien has an IV of the freaking koolaid pumped into her at all times it seems. "Rah Rah! America's number one! (at having incarcerated citizens for nonviolent offenses, killing innocent civilians internationally, and having the single worst foriegn policy) Rah rah, America! RAH!"
She probably honestly does feel that strong encryption eroding the heavy hand of the US Govt's ability to squash people is a terrible, horrible thing.
Again, it is because she is unable to comprehend how government can operate without being the fucking stazi.