From Opinion Journal:
The U.S. homeland hasn't been struck by terrorists since September 11, and one reason may be more aggressive intelligence policies. So Americans should be alarmed that one of the best intelligence tools--warrantless wiretapping of al Qaeda suspects--has recently become far less effective and is in danger of being neutered by Congressional Democrats.
President Bush approved this terrorist surveillance not long after 9/11, allowing intelligence officials to track terrorist calls overseas, as well as overseas communications with al Qaeda sympathizers operating in the U.S. The New York Times exposed the program in late 2005, and Democrats and antiwar activists immediately denounced it as an "illegal" attempt to spy on Americans, à la J. Edgar Hoover.
Democratic leaders were briefed on the program from the first and never once tried to shut it down. But once it was exposed, these same Democrats accused Mr. Bush of breaking the law by not getting warrants from the special court created under the Foreign Intelligence Surveillance Act (FISA) of 1978. Mr. Bush has rightly defended the program's legality, but as a gesture of compromise in January he agreed to seek warrants under the FISA process.
This has turned out to be an enormous mistake that has unilaterally disarmed one of our best intelligence weapons in the war on terror. To understand why, keep in mind that we live in a world of fiber optics and packet-switching. A wiretap today doesn't mean the FBI must install a bug on Abdul Terrorist's phone in Peshawar. Information now follows the path of least resistance, wherever that may lead. And because the U.S. has among the world's most efficient networks, hundreds of millions of foreign calls are routed through the U.S.
That's right: If an al Qaeda operative in Quetta calls a fellow jihadi in Peshawar, that call may well travel through a U.S. network. This ought to be a big U.S. advantage in our "asymmetrical" conflict with terrorists. But it also means that, for the purposes of FISA, a foreign call that is routed through U.S. networks becomes a domestic call. So thanks to the obligation to abide by an outdated FISA statute, U.S. intelligence is now struggling even to tap the communications of foreign-based terrorists. If this makes you furious, it gets worse.
Read the whole thing. Also, some comments from Betsy. Why do the Dems seem to want to handcuff us in a war against foreign enemies? (That's a rhetorical question.)