Obama receives criticism from the legal left for "Bush like" DOJ

In the past 3 months it seems those on the left have been equally hopeful, optimistic, eerily cautious, suspicious, and defiant all at the same time to a new administration that many in progressive circles thought would lurch the country in a new liberal direction and champion many issues that would not be given the light of day during the Bush Administration.
Now it seems that some are becoming openly hostile.
Some of the most vocal critics of Bush's Justice Department, prominent lawyers on the left, who believed they had an ally in the new president are decrying recent actions by Obama's DOJ much in the same way they did under Bush.
The issue seems to be this administration taking away rights for detainees in Afghanistan, as well as warrantless wiretapping of US citizens, both issues that Senator, as well as Candidate Obama vehemently opposed.
Obama did vote in favor for the famous FISA bill last summer, eliciting a collective groan from leftist democrats and progressives that had largely fueled his primary victory. Although this crippled a full blown offensive the GOP surely would have launched against him to paint him as yet another weak-kneed-Dukakis-esque-liberal-terrorist-coddler, it cooled the hype on the left that many party activists carried for the freshly minted presumptive Democratic nominee.
So it shouldn't be any surprise that now, as president -- with urgent national security pressures facing him and a political need to not give conservatives any more ammunition to call him "soft on terror," -- he would come out in favor of some of the same controversial policies the Bush administration put in place after 9/11. Especially since Obama's first job as president isn't to curb a recession or pass health care reform, but it's to keep the country safe. Doing this without compromising American values is the heart of the argument, and achieving those ends is a subject that hardly anyone on either side would ever be able to agree on.