What does "Passing by the White House he notices the many security provisions." mean in English for Spanish?

In English for Spanish, "Passing by the White House he notices the many security provisions." means:

Al pasar por la Casa Blanca se da cuenta de las muchas medidas de seguridad.

Listen to "Passing by the White House he notices the many security provisions.": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

• English for Spanish 4, Level 3, Scene 4