Rudy Giuliani says the United States needs a technological fence and tamper-proof ID cards for foreigners in the country.
The Republican presidential candidate also called an immigration reform bill "fatally flawed" on a brief stop in Oregon, where an immigration raid earlier in the week rounded up 167 food processers for possible deportation and three of their managers were indicted.
"This is unfortunately somewhat typical of what is going on all around the country," Giuliani said. "To me it's another dramatic example of how our borders are insecure."
"If people can sneak in here at will, then so can terrorists and so can drug dealers and so can other criminals," he said.
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The former New York mayor greeted a few people at a deli in a downtown high-rise building and chatted with the building owner, developer Tom Moyer, a former amateur boxer who told Giuliani about losing a fight with Sugar Ray Robinson on a split decision.
Outside in a cool morning drizzle, Giuliani urged President Bush to begin building the technological fence, along with establishing an ID card program and a national database to help manage border traffic.
"That's what other countries do," Giuliani said. "They secure their borders. They find out who's coming into the country, they identify them, they make sure the people who are coming into the country are coming for lawful and decent purposes."
Giuliani said the raid at a Portland produce processing plant showed how easy it is to forge documents.
A single, tamper-proof ID card would prevent forgery and reduce illegal immigration, he said.