Do you truly understand Texas Gun Laws?

IGNORANCE OF THE LAW IS NO EXCUSE - DO YOU TRULY UNDERSTAND TEXAS GUN LAWS? BY  JEFFREY L. BONEY 

http://forwardtimesonline.com/2013/index.php/state-local/item/342-ignorance-of-the-law-is-no-excuse-do-you-truly-understand-texas-gun-laws

This article is a good read.  However, some of it is not entirely accurate.  I guess the author does not "Truly understand Texas gun laws"

Per the article:

"Those places include schools, courtrooms, election polling places, racetracks, and airports, sporting events, establishments where the primary business is the sale of alcohol for on-premises consumption and any establishment posting signs barring guns."

Actually:

• Schools are off limits - only inside the actual buildings and fenced in areas and only unless you have authorization from the school administrator permitting you to carry inside.
• Airports are off limits - only in the zone beyond the security checkpoint.
• And "any establishment" posting signs barring guns - does not count unless that sign meets the very specific legal definition of "effective notice" under the statue.

Also per the article:

"Weapons such as machine guns, suppressors and short-barreled firearms are legal in the state of Texas."

Actually:

True, but they are still governed by the ATF federal regulations requiring an expensive tax stamp, gun or accessory registration, and a sign off by local Sheriff's department (which is a "may" not a "shall" in the legal language and so the Sheriff can just simply say no.)