For a somewhat different perspective on this issue, it may be best to quote directly from the Huffington Post:

WASHINGTON – President Barack Obama says another round of talks with congressional leaders has helped but there is no deal yet to avert a government shutdown.

Obama said he hoped to be able to announce a deal on Friday but “there’s no certainty yet.” He said he told House Speaker John Boehner and Senate Majority Leader Harry Reid that he wants an answer in the morning.

Meanwhile, it would appear as though the United States Department of State is frantically working in an effort to get as much done as possible before the shutdown actually takes effect. For example, the US Embassy in Bangkok, to that Post’s immense credit, has been processing out approved visas as quickly as possible as the possible shutdown approaches. This blogger personally witnessed the expedited remittance of a visaed passport by the US Embassy to an applicant immediately preceding the writing of the posting. Meanwhile, it also came to this blogger’s attention that some Department of State employees situated in the United States were put in a position where they had to work a substantial amount of overtime in an effort to get as much done as possible prior to a government closure.

In this blogger’s opinion, the current efforts of States Department officials are notable for the fact that such endeavors go to show a genuine concern for providing optimal service to the public-at-large. At the time of this writing, it remains to be seen whether the American government will actually shutdown, but for those with pending immigration matters the prospect of a government shutdown opens up the possibility of delay in the overall immigration process. This is especially true in the context of United States Embassies and United States Consulates abroad as such Posts are likely to close for all but emergencies should a shutdown eventually come to pass.

For related information please see: Government Shutdown.

The following was quoted directly from a recent posting on the website CaldwellTeaParty.org:

The next month will be marked by intense negotiations on the debt ceiling, and the GOP will then have to decide on a shutdown or a bipartisan budget deal with Kent Conrad and his allies.

The above citation most clearly and concisely sums up the current state of affairs regarding the possibility of a government shutdown. The administration encourages readers to click on the above links as this issue is quite complex. Those interested in understanding the ramifications of a government shutdown may be best informed by this administration quoting directly from Wikipedia:

A government shutdown occurs when a government discontinues providing services that are not considered “essential.” Typically, services that continue in spite of a shutdown include police, fire fighting, armed forces, utilities, air traffic management and corrections.

A shutdown can occur when a legislative body (including the legislative power of veto by the executive) cannot agree on a budget financing its government programs for a pending fiscal year. In the absence of appropriated funds, the government discontinues providing non-essential services at the beginning of the affected fiscal year. Government employees who provide essential services, often referred to as “essential employees”, are required to continue working.

Although the above citation clears up the issue of what constitutes a government shutdown, the question likely on the mind of those with foreign loved ones processing through the immigration system is: how would a government shutdown impact the processing of my loved one’s visa? The answer: a Federal government shutdown would result in a sort of “freeze” of most of the immigration apparatus as this falls within the bailiwick of the Federal government. Therefore, a Federal shutdown would likely result in little, if any, action being taken with regard to adjudication of visa applications  at each US Embassy or US Consulate abroad. For further insight it may be best to quote directly from a recent posting on the Diplopundit blog:

In 1995, all visa applications are walk-in.  Today, a good number of consular sections have online appointment systems. Which means, visa appointments will have to be canceled and rescheduled if there is a shutdown.  Consular sections may only be open for life and death emergencies. That means lost passport applications, reports of births abroad, adoption cases, notarials, etc. will all have to wait until the Federal government reopens.

The administration of this blog highly encourages readers to click on the above hyperlinks as the quotation above was found in a very interesting and detailed posting dealing with these issues.

Clearly, the ramifications of a government shutdown will be severe for those awaiting processing of a visa application. Meanwhile, it would appear as though USCIS will continue to operate as normal despite a possible shutdown. To quote directly from the website Martindale.com:

USCIS has announced that, because it is funded by filing fees, it should remain open during a government shutdown. The operations of the four Service Centers should remain largely unaffected. Local USCIS District Offices should also remain open.

Again, this blogger highly encourages readers to click on the hyperlinks above to learn more.

Notice that the above quotation uses the word should. This blogger only points this out as it goes to show how difficult it is to foretell what the impact of a government shutdown would be on the United States Citizenship and Immigration Service (USCIS) since that agency has attempted to remain self-funded through application fees. That said, the overall issue of government shutdown has yet to fully manifest itself, but that should not be construed to mean that it will not. In fact, those seeking American visas are likely to see an overall slowdown in the overall processing of cases as a result of a shutdown (should one actually occur, which remains to be seen).