My experience in traveling overseas is to only pick up taxis at taxis stands or hotels.

This is not limited to Mexico.

If at all possible, call the taxis company and order a taxis, if a stand is not available.

This is a real problem at airports.  They will see that you are an american and try to get 
you to take their taxi without using the que.

--- On Sun, 2 Feb 1997 16:20:30 -0600  Trace Choulat <tchoul@osprey.unf.edu> wrote:

>
>Found on Expedia:
>
>24 January 1997=20
>
>Taxi Assaults Pose Threat in Mexico City=20
>
>WASHINGTON, D.C.  Americans visiting Mexico City should get into taxis=20
>only at sitios, the authorized taxi stands which are found throughout the=
>=20
>city, the U.S. Department of State warns.=20
>=A0=A0=A0=A0=A0Robberies, abductions, and assaults in taxis against travele=
>rs and=20
>U.S. Embassy employees have been increasing in frequency and violence,=20
>according to a State Department public announcement.=20
>=A0=A0=A0=A0=A0Travelers should avoid Volkswagen taxis and other cabs that =
>cruise=20
>                            ^^^^^^^^^^
>the streets or wait for fares in front of restaurants, theaters, clubs,=20
>and hotels. Instead, ask at your hotel for directions to a sitio, or call=
>=20
>authorized 24-hour taxi dispatch services in Mexico City at 271-9146,=20
>271-9058, or 273-6125.=20
>
>

-----------------End of Original Message-----------------

________________________________________________

  Michael Stocker <mdstockr@neo.lrun.com>
  North Canton, Ohio, USA     Time: 6:11:16 PM
  LiMBO / GASS                Date: 2/2/97
  1989 Audi 90 Quattro
  Wanted: Nice 1968->? bus or Westi
  Previous VW's: '66-T3, '67-T1 & '70-T2 Westi
________________________________________________