There are two articles below :

Washington DC heavily targeted for Verichip marketing -- March 2006
"The two Washington, D.C., residents are among just a handful of Americans who have had the tiny electronic VeriChip inserted since the government approved it two years ago. But the chip is being aggressively marketed by its manufacturer, which is targeting Washington ( D.C.) to be the first metropolitan area with multiple hospitals equipped to read the device, a persuasive factor for Fischer and Hickey. Within weeks, the first hospital is expected to announce plans to start routinely scanning all emergency-room patients ....

Many of the hospitals, including three in the Washington area, have received scanners and started training their emergency-room staffs in their use, he said. Procter declined to name the hospitals until they formally announce their plans.
One area doctor has begun implanting the chips.
"I thought this would be important to offer to many of my patients," said Jonathan Musher, a Chevy Chase, Md., physician the company hired to help recruit hospitals and assemble a nationwide network of doctors offering the chips. "With this, a quick scan back and forth across their arm could make all the difference in critical life-and-death situations where seconds count."......

As far as I can tell, there are no security measures taken with the chip. It's not a secure chip," said
Richard M. Smith, an Internet and privacy consultant in Boston. "There's nothing to stop someone from accessing the code and cloning the chip" to access records, he said.
Even though the medical information is stored in a protected computer, anyone with a password could obtain the information."
http://www.azcentral.com/news/articles/0318chipimplants0318.html


Taking his time to say "yes" to chips -- March 16, 2006
Unidentified woman asks if Bush will take the implanted chip
Ed: when they open up the topic, it won't be long until definitive statements will be made
"After calling the topic an "interesting question" he had never been presented with, [ Ed ? ] he quickly punted to Health and Human Services Secretary Mike Leavitt. "Maybe it's time for the secretary to step in," Bush said."
http://www.azcentral.com/news/articles/0316bush-curveball0316.html