Markets gap down on global tensions; Pfizer controversy deepens; and Black Friday retailer tricks

The markets (^DJI, ^GSPC, ^IXIC) are relatively flat now after news of a downed Russian plane near the Syrian border.  Here are some of the other stories we're looking at today at Yahoo Finance.

Get the Latest Market Data and News with the Yahoo Finance App

NATO vs. Russia

News of the Turkish air strike against a Russian fighter jet is dominating the headlines today. NATO has called a special meeting to discuss the situation. The markets have pulled back a bit as a result of the conflagration.

Pfizer tax controversy

U.S. politicians are calling Pfizer (PFE) a tax dodger. Democrats are most vocal about the proposed reverse merger with Allergan, a Dublin-based company, which could save billions in future tax liabilities.

Google's mortgage help

Google (GOOGL) is making news on several fronts today. They'll let you makeover your smart phone with Star Wars–themed mods. And, if you happen to be buying a house, they want to help you with that too, by getting you get the best mortgage deal.

Black Friday tricks

Finding a real bargain this holiday season might not be so straight forward. Layers of discounts often disguise the real savings and require a lot of patience, and math skills, on the part of the consumer.