I think the US, if they are going to continue this, needs to develop a basis by which this does not violate international law. After reading the excellent article you linked to, I went to the link in the last line which has more on the study. On the issue of international law, it explains the difficulty in doing this under the law.
The first is that the strikes, which almost inevitably kill civilians, may be on shaky legal ground. Columbia Law School professor Matthew Waxman points out that this is a tricky judgment call: "The principle of proportionality says that a military target may not be attacked if doing so is likely to cause incidental civilian casualties or damage that would be excessive in relation to the expected military advantage of the attack.... But there is no consensus on how to calculate these values (how do you compare the value of civilian lives versus the value of disrupting high-level terrorist operational planning?) Nor is there consensus on what imbalance is ‘excessive.' It's very hard to draw definitive conclusions because it requires assessments about such things as the expected military gain from neutralizing the target, the likely civilian harm, and the availability of alternative means of attacking that could save innocent lives."
There are also problems, I had never heard of - including a scary prospect that one effect is pushing the terrorists into areas of Pakistan that we would
not use predators on, which could destabalize Pakistan, as well as leading to Taliban retaliations against civilians. It also mentions, drone attacks don't result in us getting the laptops and cell pones.
Third, the strikes no longer have the element of surprise. It is highly unlikely that the drone program will be expanded from FATA into other, non-tribal regions of Pakistan because of intense Pakistani opposition to such a move. Understanding that fact, some militants have undoubtedly moved out of FATA and into safer parts of Pakistan, potentially further destabilizing the fragile Pakistani state.
It then speaks of the limitations of the program (which seem to also be why pure counterterrorism can't succeed):
Fifth, the drone program is a tactic, not a strategy. Bruce Hoffman, a Georgetown University professor widely regarded as the dean of terrorism studies, says, "We are deluding ourselves if we think in and of itself the drone program is going to be the answer." He points out that the 2006 U.S. airstrike that killed the leader of al Qaeda in Iraq, Abu Musab al-Zarqawi, did not exactly shut down the organization. Following Zarqawi's death, violence in Iraq accelerated.
Sixth, while there is little doubt that the strikes have disrupted al Qaeda's operations, the larger question is to what extent they may have increased the appeal of militant groups and undermined the Pakistani state. This is ultimately a lot more worrisome than anything that could happen in Afghanistan, given that Pakistan has dozens of nuclear weapons and is one of the world's most populous countries.
http://www.newamerica.net/publications/policy/revenge_dronesKerry was at one point very concerned about the use of the drones, I wish he had not shifted to arguing that their effectiveness and precision justified them. Even from these articles, there is the problem that it might be the least bad alternative. It is very very important to stay with what complies with international law. There is also something extremely unattractive (for lack of a better word) with the US sending them into a country we are not at war with without any involvement or oversight by them. This, not KLB, seems to me to infringe on their sovereignty. I wonder if that is by the choice of the Pakistani government because it channels what would be anti-government sentiment to anti-American sentiment.
I know it is more the jurisdiction of the Armed Services committee, but I wish Kerry would have hearing to determine if this is against international law and if it is, how, if possible, it could be made legal. (A joint hearing with Levin's Armed Services committee could really be fascinating.) For Kerry not to be concerned that he supports a program that some say could violate international law would be counter to much that he has stood for.