German Foreign Minstry travel dvice (German language)
The first section does not refer to the US but to the situation re Fukushima - apparently prepended to all countries at present.
As for the US, the bulk of the information regards the onerous immigration/security formalities. Salient points from the rest of the text:
[li]firearms easily available, so do not resist a mugging[/li][li]hurricane season, May-November[/li][li]California fire season, June-November[/li][li]do take a credit card, failing that, traveler’s checks. Most banks do not change foreign cash. [/li][li]low speed limits, hard penalties for speeding and DUI[/li][li]punitive damages not covered by car third-party insurance. Not enforceable in Germany but if you re-enter the US later.[/li][li]criminal procedure unfamiliar, often severe criminal penalties. Note on contacting consular representatives.[/li][li]hard penalties for having drugs, even small quantities where diversion would apply in Germany. Strict checks even for passengers in transit to another country. [/li][li]widespread bans on drinking alcohol in public, high drinking age of 21, carding.[/li][li]widespread smoking bans, enforced by fines[/li][li]you can get in trouble for nude bathing, even for changing at the beach, even for letting small children run around naked. Best do not bathe topless, also applies to young girls. [/li][li]Take care when photographing your children when they are not fully clothed - could be prosecuted as child porn.[/li][li]high age of consent, per-state, risky (examples quoted: 18 year old traveling with 17 year old GF, 16 year old with 15 year old GF).[/li][li]nursing in public - take care in non-liberal [European meaning] parts of country[/li][li]strict criminal laws on leaving children unsupervised. In general: never leave under-eight-year olds unsupervised, leave under-13-year-olds only unsupervised for a short time.[/li][li]patronising prostitutes illegal in many states[/li][li]stalking illegal [my note: only specifically illegal in Germany since 2007][/li][li]promptly pay parking/speeding tickets[/li][li]when stopped by police, roll down window, put hands on steering wheel. Police may misunderstand leaving car for attack.[/li][li]notes on vaccinations, esp. hep. A/B, and on West Nile virus[/li][li]good quality medical care available but in some areas only at a long distance [my note: this is because ‘rural’ is much more rural in some parts in the US than it is in any region of Germany]. Get travel insurance covering US and a credit card with a high limit. When medically possible, often preferable to fly back to Germany for treatment.[/li][/ul]