A Lexington man sits behind bars on federal cocaine trafficking charges and a Massachusetts fugitive just got 20 years for stabbing a law enforcement officer — two cases in two states that expose how drug networks and violent offenders operate freely across American communities while Washington looks the other way.

These aren't isolated local crime stories. They're symptoms of a system that can't or won't secure the borders and track the networks poisoning American towns.

Federal prosecutors indicted Jianyang Huang, 39, a legal resident from China, for trafficking 20 kilograms of cocaine between Massachusetts and New York, according to the U.S. Attorney's Office. The Boston Herald reported that Huang used the encrypted Signal app to coordinate with suppliers — the same kind of encrypted communications cartels exploit to move product and avoid detection.

In March, a cooperating witness picked up two suitcases packed with ten bricks of cocaine at Huang's direction, then drove them to a hotel in Burlington to meet him, the U.S. Attorney's statement said. When Huang and the witness wheeled the suitcases toward his hotel room, federal authorities grabbed him in the parking lot. Huang now faces 10 years to life on each of two counts: conspiracy to distribute and possession with intent to distribute more than 5 kilograms of cocaine.

Meanwhile, a different kind of border failure played out in a Syracuse courtroom. Cedric Cundiff, wanted on multiple Massachusetts charges including robbery and assault, fled to New York rather than face justice. When a U.S. Marshals Service task force tracked him to a Syracuse address in January, Cundiff barricaded himself inside, then slashed a State Police investigator's left hand with a knife as the officer tried to open a pocket door — leaving multiple lacerations and a fractured finger, according to the plea agreement cited by syracuse.com.

Chief U.S. District Judge Brenda Sannes sentenced Cundiff to 20 years Tuesday after he pleaded guilty to three federal charges, including assault of a federal officer. Cundiff told the court he had an addiction problem and regretted his actions. Sannes said it was sad Cundiff didn't pursue his abilities as a chef. The investigator, identified only as