It turns out that the DEA data mines your travel data to see if it is worth it to steal your money:

Federal drug agents regularly mine Americans’ travel information to profile people who might be ferrying money for narcotics traffickers — though they almost never use what they learn to make arrests or build criminal cases.

Instead, that targeting has helped the Drug Enforcement Administration seize a small fortune in cash.

DEA agents have profiled passengers on Amtrak trains and nearly every major U.S. airline, drawing on reports from a network of travel-industry informants that extends from ticket counters to back offices, a USA TODAY investigation has found. Agents assigned to airports and train stations singled out passengers for questioning or searches for reasons as seemingly benign as traveling one-way to California or having paid for a ticket in cash.

The DEA surveillance is separate from the vast and widely-known anti-terrorism apparatus that now surrounds air travel, which is rarely used for routine law enforcement. It has been carried out largely without the airlines’ knowledge.

It is a lucrative endeavor, and one that remains largely unknown outside the drug agency. DEA units assigned to patrol 15 of the nation’s busiest airports seized more than $209 million in cash from at least 5,200 people over the past decade after concluding the money was linked to drug trafficking, according to Justice Department records. Most of the money was passed on to local police departments that lend officers to assist the drug agency.

“They count on this as part of the budget,” said Louis Weiss, a former supervisor of the DEA group assigned to Hartsfield-Jackson Atlanta International Airport. “Basically, you’ve got to feed the monster.”

There may be times that seizure is justified, but by allowing those executing the seizures to keep the money for themselves, they end up becoming little more than mobsters running a protection racket.