PRIVACY + SECURITY BLOG

News, Developments, and Insights

high-tech technology background with eyes on computer display

Subways, Searches, and Slippery Slopes

Subway Searches

The gloves are off. Dave Hoffman has lodged another challenge to my position, and I want to take a quick moment to defend myself. I believe that Dave mischaracterizes my arguments in several places and exaggerates some of my claims. So I’ll attempt to clear up any confusion as to my positions and try to defend my […]

What Does It Take to Establish Probable Cause?

Probable Cause Fourth Amendment

In a concurring opinion in United States v. McClain, No. 04-5887 (6th Cir., Dec. 2, 2005), Chief Judge Danny Boggs of the U.S. Court of Appeals for the Sixth Circuit seeks to explain what “probable cause” entails. Under the Fourth Amendment, law enforcement officials often must have probable cause to believe that the place to be searched contains […]

Journalist Privilege and Law Enforcement Leaks

Law Enforcement Leaks

In a very interesting case, U.S. District Court Judge Rosemary Collyer recently held a Washington Post reporter in contempt of court for not revealing the source of a leak in the investigation of Wen Ho Lee. [Click here for the court’s opinion.] The case involves a civil suit by Lee against a number of federal agencies for […]

National Security Letters

National Security Letter - NSL

Did you know that the FBI can issue a letter to an Internet Service Provider or a financial institution demanding that they turn over data on a customer? The letter doesn’t require probable cause. No judge must authorize the letter. The FBI simply issues the letter and gets the information. There’s a gag order, too, […]

Hi-Tech Rat Race: Law Enforcement Surveillance and New Technology

Facial Recognition

Brian Bergstein writes in an AP article about the issue of law enforcement surveillance and technology: With each new advance in communications, the government wants the same level of snooping power that authorities have exercised over phone conversations for a century. Technologists recoil, accusing the government of micromanaging — and potentially limiting — innovation. Today, this tug […]

Should We All Be in the National DNA Database?

DNA Database

The Senate recently voted to reauthorize the Violence Against Women Act. But nestled in the Act was an amendment by Senator Jon Kyl (R-Arizona) to add arrestee information to the national DNA database. The national DNA database, which is run by the FBI, is called the Combined DNA Index System (“CODIS”), and it includes DNA from over two […]