Read this article "Clean Air Never Smelled So Bad:Union Oil Co. of California v. Atlantic Richfield Co." Consider the 393 patent mainly from UNOCAL's competitor's position. https://houstonlawreview.org/article/4197-clean-air-never-smelled-so-bad-i-union-oil-co-of-california-v-atlantic-richfield-co-i

Please answer the following questions below

1. Discuss how Noerr-Pennington immunity makes challenging this case in the FTC difficult.

2. Discuss how despite the difficulties created by Noerr-Pennington a challenge was still possible.

3. After the FTC's second ruling in favor of UNOCAL, how has the position of both UNOCAL and the common interest litigation group changed? Who has the stronger arguments at this point?

Also state any other opinions and ideas.