The Cyber-Intelligence Sharing and Protection act, in short sucks.
Techdirt,
Lumin Consulting, and
CNET (probably amongst others) have probably explained why better than I ever will, but basically:
CISPA is bad because it's so vaguely worded it can cause exactly [or at least a lot of] the
same stuff that SOPA could have, and enables greater corporate
complicity in handing over our information, should they choose. This
circumvents other protections, from what I can gather.
And, because loads of internet sites rely on US traffic and are based in the US, this'll wreck quite a bit of the internet for the rest of us (the author of this is British) as well.