Analysis Summary:

The CBS article is mostly accurate. It focuses on the Buena Vista Cafe and Paul Nolan's role in making Irish coffee famous there. The core ingredients of Irish coffee are confirmed by multiple sources. The article presents a positive view of the cafe and the drink, but the bias is minimal.

Detailed Analysis:

• Claim:** The Buena Vista Café is a San Francisco institution. This is generally accepted knowledge and likely true, but none of the provided verification sources directly confirm this.
• Claim:** For more than 40 years bartender Paul Nolan has been making the drink that made the Buena Vista famous: the Irish coffee. This is not directly verifiable by the provided sources.
• Claim:** The drink is a mixture of coffee, Irish whiskey, and heavy cream. This is supported by multiple sources as the core ingredients of Irish coffee. `Verification Source #3:` mentions coffee. `Verification Source #4:` mentions whiskey. The heavy cream aspect is implied by the general description of Irish coffee in several sources, although not explicitly stated as "heavy cream."
• Claim:** The drink has kept locals and tourists coming back again and again. This is an opinion/observation and not directly verifiable.

Supporting Evidence/Contradictions:

• The core ingredients of Irish coffee (coffee, whiskey) are confirmed by `Verification Source #3:` and `Verification Source #4:`.
• The specific claims about the Buena Vista Cafe and Paul Nolan are not directly supported or contradicted by the provided sources. This doesn't mean they are false, just that the provided sources don't cover them.