Until they mention the word Jesus.
Huh?
Here's where the ACLU went to court to defend a Christian Church facing eviction:
http://www.aclu.org/ReligiousLiberty/ReligiousLiberty.cfm?ID=16295&c=142
Here's where they defended a Catholic who faced discrimination (in court):
www.aclu.org/ReligiousLiberty/ReligiousLiberty.cfm?ID=16138&c=142
Here's where they threatened to sue when a water park in Virginia tried to stop baptisms (they got the park to back down:
http://www.aclu.org/ReligiousLiberty/ReligiousLiberty.cfm?ID=15897&c=141
Here's where they joined a lawsuit on the same side as Jerry Falwell (!): http://www.aclu.org/ReligiousLiberty/ReligiousLiberty.cfm?ID=10147&c=142
Here's where they stood up for a Christian missionary having the right to be in a jury:
http://www.aclu.org/ReligiousLiberty/ReligiousLibertylist.cfm?c=141
Here's where they fought for a religious fairness bill, alongside the Family Research Council, the Baptist Joint Committee, the Christian Legal Society, etc.
http://www.aclu.org/ReligiousLiberty/ReligiousLiberty.cfm?ID=8053&c=142
It goes on and on. Just because they don't want the 10 commandments posted on the courtroom walls doesn't mean that they won't stick up for your right to have your beliefs.